diff --git a/simple-mind-map/index.js b/simple-mind-map/index.js
index 69dce84f..66f92f2c 100644
--- a/simple-mind-map/index.js
+++ b/simple-mind-map/index.js
@@ -19,7 +19,8 @@ import {
   getObjectChangedProps,
   isUndef,
   handleGetSvgDataExtraContent,
-  getNodeTreeBoundingRect
+  getNodeTreeBoundingRect,
+  mergeTheme
 } from './src/utils'
 import defaultTheme, {
   checkIsNodeSizeIndependenceConfig
@@ -252,7 +253,7 @@ class MindMap {
   //  设置主题
   initTheme() {
     // 合并主题配置
-    this.themeConfig = merge(theme[this.opt.theme], this.opt.themeConfig)
+    this.themeConfig = mergeTheme(theme[this.opt.theme], this.opt.themeConfig)
     // 设置背景样式
     Style.setBackgroundStyle(this.el, this.themeConfig)
   }
@@ -638,7 +639,7 @@ MindMap.defineTheme = (name, config = {}) => {
   if (theme[name]) {
     return new Error('该主题名称已存在')
   }
-  theme[name] = merge(defaultTheme, config)
+  theme[name] = mergeTheme(defaultTheme, config)
 }
 
 export default MindMap
diff --git a/simple-mind-map/src/themes/autumn.js b/simple-mind-map/src/themes/autumn.js
index b7d295b1..f92bf0da 100644
--- a/simple-mind-map/src/themes/autumn.js
+++ b/simple-mind-map/src/themes/autumn.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 秋天
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: '#fff2df',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/avocado.js b/simple-mind-map/src/themes/avocado.js
index d425388b..22a902f1 100644
--- a/simple-mind-map/src/themes/avocado.js
+++ b/simple-mind-map/src/themes/avocado.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 牛油果
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: '#e6f1de',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/blackGold.js b/simple-mind-map/src/themes/blackGold.js
index c11cd4ee..01304a4d 100644
--- a/simple-mind-map/src/themes/blackGold.js
+++ b/simple-mind-map/src/themes/blackGold.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 黑金
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: 'rgb(18, 20, 20)',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/blackHumour.js b/simple-mind-map/src/themes/blackHumour.js
index 62de9777..24d36721 100644
--- a/simple-mind-map/src/themes/blackHumour.js
+++ b/simple-mind-map/src/themes/blackHumour.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 黑色幽默
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: 'rgb(27, 31, 34)',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/blueSky.js b/simple-mind-map/src/themes/blueSky.js
index f5343553..0b100aaf 100644
--- a/simple-mind-map/src/themes/blueSky.js
+++ b/simple-mind-map/src/themes/blueSky.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  天空蓝
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(115, 161, 191)',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/brainImpairedPink.js b/simple-mind-map/src/themes/brainImpairedPink.js
index 01fd3283..1087bdf3 100644
--- a/simple-mind-map/src/themes/brainImpairedPink.js
+++ b/simple-mind-map/src/themes/brainImpairedPink.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  脑残粉
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(191, 115, 148)',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/classic.js b/simple-mind-map/src/themes/classic.js
index 792026cf..c6a60ac8 100644
--- a/simple-mind-map/src/themes/classic.js
+++ b/simple-mind-map/src/themes/classic.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  脑图经典
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: '#fff',
   // 连线的粗细
diff --git a/simple-mind-map/src/themes/classic2.js b/simple-mind-map/src/themes/classic2.js
index 1fef1fe2..0fda1aeb 100644
--- a/simple-mind-map/src/themes/classic2.js
+++ b/simple-mind-map/src/themes/classic2.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  经典2
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(51, 51, 51)',
   // 连线的粗细
diff --git a/simple-mind-map/src/themes/classic3.js b/simple-mind-map/src/themes/classic3.js
index 21523e2c..1ab19d9a 100644
--- a/simple-mind-map/src/themes/classic3.js
+++ b/simple-mind-map/src/themes/classic3.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  经典3
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(94, 202, 110)',
   // 连线的粗细
diff --git a/simple-mind-map/src/themes/classic4.js b/simple-mind-map/src/themes/classic4.js
index 70886afb..00e0cf11 100644
--- a/simple-mind-map/src/themes/classic4.js
+++ b/simple-mind-map/src/themes/classic4.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  经典4
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(30, 53, 86)',
   // 连线的粗细
diff --git a/simple-mind-map/src/themes/classicBlue.js b/simple-mind-map/src/themes/classicBlue.js
index 8b7a60b3..d128c7a5 100644
--- a/simple-mind-map/src/themes/classicBlue.js
+++ b/simple-mind-map/src/themes/classicBlue.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  经典蓝
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(51, 51, 51)',
   // 连线的粗细
diff --git a/simple-mind-map/src/themes/classicGreen.js b/simple-mind-map/src/themes/classicGreen.js
index 65b6e81b..e67cf9ac 100644
--- a/simple-mind-map/src/themes/classicGreen.js
+++ b/simple-mind-map/src/themes/classicGreen.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  经典绿
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(123, 199, 120)',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/coffee.js b/simple-mind-map/src/themes/coffee.js
index b3f73d3c..a4f9ac3d 100644
--- a/simple-mind-map/src/themes/coffee.js
+++ b/simple-mind-map/src/themes/coffee.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 咖啡
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(173, 123, 91)',
   lineWidth: 4,
diff --git a/simple-mind-map/src/themes/courseGreen.js b/simple-mind-map/src/themes/courseGreen.js
index 2d19cd1a..550e12a5 100644
--- a/simple-mind-map/src/themes/courseGreen.js
+++ b/simple-mind-map/src/themes/courseGreen.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 课程绿
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(113, 195, 169)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/dark.js b/simple-mind-map/src/themes/dark.js
index 833f93c2..18073bce 100644
--- a/simple-mind-map/src/themes/dark.js
+++ b/simple-mind-map/src/themes/dark.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  暗色
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(17, 68, 23)',
   // 连线的粗细
diff --git a/simple-mind-map/src/themes/dark2.js b/simple-mind-map/src/themes/dark2.js
index 4a4e1c31..1dc9a7fd 100644
--- a/simple-mind-map/src/themes/dark2.js
+++ b/simple-mind-map/src/themes/dark2.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  暗色2
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(75, 81, 78)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/earthYellow.js b/simple-mind-map/src/themes/earthYellow.js
index 0196cf8b..c8ca8656 100644
--- a/simple-mind-map/src/themes/earthYellow.js
+++ b/simple-mind-map/src/themes/earthYellow.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  泥土黄
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(191, 147, 115)',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/freshGreen.js b/simple-mind-map/src/themes/freshGreen.js
index 7c939639..66c19168 100644
--- a/simple-mind-map/src/themes/freshGreen.js
+++ b/simple-mind-map/src/themes/freshGreen.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  清新绿
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: '#333',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/freshRed.js b/simple-mind-map/src/themes/freshRed.js
index 583b7933..6aaa7598 100644
--- a/simple-mind-map/src/themes/freshRed.js
+++ b/simple-mind-map/src/themes/freshRed.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  清新红
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(191, 115, 115)',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/gold.js b/simple-mind-map/src/themes/gold.js
index a524a691..63c9dfae 100644
--- a/simple-mind-map/src/themes/gold.js
+++ b/simple-mind-map/src/themes/gold.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  金色vip
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(51, 56, 62)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/greenLeaf.js b/simple-mind-map/src/themes/greenLeaf.js
index 9fd18a39..ed1e5660 100644
--- a/simple-mind-map/src/themes/greenLeaf.js
+++ b/simple-mind-map/src/themes/greenLeaf.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  绿叶
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(40, 193, 84)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/lateNightOffice.js b/simple-mind-map/src/themes/lateNightOffice.js
index a80f4b69..bd55c4ee 100644
--- a/simple-mind-map/src/themes/lateNightOffice.js
+++ b/simple-mind-map/src/themes/lateNightOffice.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 深夜办公室
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: 'rgb(32, 37, 49)',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/minions.js b/simple-mind-map/src/themes/minions.js
index b7f0d2f3..773a90b8 100644
--- a/simple-mind-map/src/themes/minions.js
+++ b/simple-mind-map/src/themes/minions.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  小黄人
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(51, 51, 51)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/mint.js b/simple-mind-map/src/themes/mint.js
index 336a67c0..7d9f6619 100644
--- a/simple-mind-map/src/themes/mint.js
+++ b/simple-mind-map/src/themes/mint.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  薄荷
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(104, 204, 202)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/orangeJuice.js b/simple-mind-map/src/themes/orangeJuice.js
index 0e2c47f6..697f3cac 100644
--- a/simple-mind-map/src/themes/orangeJuice.js
+++ b/simple-mind-map/src/themes/orangeJuice.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 橙汁
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: '#070616',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/pinkGrape.js b/simple-mind-map/src/themes/pinkGrape.js
index c867c740..054423ae 100644
--- a/simple-mind-map/src/themes/pinkGrape.js
+++ b/simple-mind-map/src/themes/pinkGrape.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  粉红葡萄
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(166, 101, 106)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/redSpirit.js b/simple-mind-map/src/themes/redSpirit.js
index 89dbca7c..042cd53a 100644
--- a/simple-mind-map/src/themes/redSpirit.js
+++ b/simple-mind-map/src/themes/redSpirit.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 红色精神
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 背景颜色
   backgroundColor: 'rgb(255, 238, 228)',
   // 连线的颜色
diff --git a/simple-mind-map/src/themes/romanticPurple.js b/simple-mind-map/src/themes/romanticPurple.js
index 77fac345..37344911 100644
--- a/simple-mind-map/src/themes/romanticPurple.js
+++ b/simple-mind-map/src/themes/romanticPurple.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  浪漫紫
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(123, 115, 191)',
   // 背景颜色
diff --git a/simple-mind-map/src/themes/simpleBlack.js b/simple-mind-map/src/themes/simpleBlack.js
index 31360896..c255c3f7 100644
--- a/simple-mind-map/src/themes/simpleBlack.js
+++ b/simple-mind-map/src/themes/simpleBlack.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 // 简约黑
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(34, 34, 34)',
   lineWidth: 4,
diff --git a/simple-mind-map/src/themes/skyGreen.js b/simple-mind-map/src/themes/skyGreen.js
index 1193c397..f0876829 100644
--- a/simple-mind-map/src/themes/skyGreen.js
+++ b/simple-mind-map/src/themes/skyGreen.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  天清绿
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: '#fff',
   lineWidth: 3,
diff --git a/simple-mind-map/src/themes/vitalityOrange.js b/simple-mind-map/src/themes/vitalityOrange.js
index a35a32fe..de89eaeb 100644
--- a/simple-mind-map/src/themes/vitalityOrange.js
+++ b/simple-mind-map/src/themes/vitalityOrange.js
@@ -1,8 +1,8 @@
 import defaultTheme from './default'
-import merge from 'deepmerge'
+import { mergeTheme } from '../utils'
 
 //  活力橙
-export default merge(defaultTheme, {
+export default mergeTheme(defaultTheme, {
   // 连线的颜色
   lineColor: 'rgb(254, 146, 0)',
   lineWidth: 3,
diff --git a/simple-mind-map/src/utils/index.js b/simple-mind-map/src/utils/index.js
index 132ca77c..4c0fb3c1 100644
--- a/simple-mind-map/src/utils/index.js
+++ b/simple-mind-map/src/utils/index.js
@@ -5,6 +5,7 @@ import {
 } from '../constants/constant'
 import MersenneTwister from './mersenneTwister'
 import { ForeignObject } from '@svgdotjs/svg.js'
+import merge from 'deepmerge'
 
 //  深度优先遍历树
 export const walk = (
@@ -1610,3 +1611,12 @@ export const sortNodeList = nodeList => {
   })
   return nodeList
 }
+
+// 合并主题配置
+export const mergeTheme = (dest, source) => {
+  return merge(dest, source, {
+    arrayMerge: (destinationArray, sourceArray) => {
+      return sourceArray
+    }
+  })
+}