diff --git a/packages/vmind/__tests__/unit/vchartSpec/util.test.ts b/packages/vmind/__tests__/unit/vchartSpec/util.test.ts
index 6b409b1..643a4ec 100644
--- a/packages/vmind/__tests__/unit/vchartSpec/util.test.ts
+++ b/packages/vmind/__tests__/unit/vchartSpec/util.test.ts
@@ -1,4 +1,4 @@
-import { checkDuplicatedKey, convertFunctionString } from '../../../src/atom/VChartSpec/utils';
+import { checkDuplicatedKey, convertFunctionString, removeUnneedArrayInSpec } from '../../../src/atom/VChartSpec/utils';
 
 describe('checkDuplicatedKey', () => {
   it('should return null when not match', () => {
@@ -95,3 +95,47 @@ describe('convertFunctionString', () => {
     expect(obj1.a).toEqual(spec.a);
   });
 });
+
+describe('removeUnneedArrayInSpec', () => {
+  it('should remove unneed array in spec', () => {
+    expect(
+      removeUnneedArrayInSpec(
+        {
+          legends: [{ orient: 'left' }]
+        },
+        'legends',
+        'legends'
+      )
+    ).toEqual({ orient: 'left' });
+
+    expect(
+      removeUnneedArrayInSpec(
+        {
+          legends: [{ orient: 'left' }]
+        },
+        'legends',
+        'legends[0]'
+      )
+    ).toEqual({ orient: 'left' });
+
+    expect(
+      removeUnneedArrayInSpec(
+        {
+          'legends[0]': { orient: 'left' }
+        },
+        'legends',
+        'legends[0]'
+      )
+    ).toEqual({ orient: 'left' });
+
+    expect(
+      removeUnneedArrayInSpec(
+        {
+          'legends[0]': { orient: 'left' }
+        },
+        'legends',
+        'legends'
+      )
+    ).toEqual({ orient: 'left' });
+  });
+});
diff --git a/packages/vmind/src/atom/VChartSpec/utils.ts b/packages/vmind/src/atom/VChartSpec/utils.ts
index 74f4f8d..f18d381 100644
--- a/packages/vmind/src/atom/VChartSpec/utils.ts
+++ b/packages/vmind/src/atom/VChartSpec/utils.ts
@@ -313,16 +313,6 @@ export const removeUnneedArrayInSpec = (leafSpec: any, compKey: string, parentKe
     : leafSpec;
 };
 
-export const addArrayInSpec = (leafSpec: any, compKey: string, parentKeyPath: string) => {
-  return leafSpec[compKey]
-    ? isArray(leafSpec[compKey])
-      ? leafSpec[compKey][0]
-      : leafSpec[compKey]
-    : parentKeyPath in leafSpec
-    ? leafSpec[parentKeyPath]
-    : leafSpec;
-};
-
 const ALIAS_NAME_KEY = '_alias_name';
 
 export const parseAliasOfPath = (parentKeyPath: string, aliasKeyPath: string, chartSpec: any, leafSpec: any) => {
@@ -341,7 +331,7 @@ export const parseAliasOfPath = (parentKeyPath: string, aliasKeyPath: string, ch
         }
         return {
           parentKeyPath: subPaths.join('.'),
-          leafSpec: addArrayInSpec(leafSpec, compKey, parentKeyPath)
+          leafSpec: removeUnneedArrayInSpec(leafSpec, compKey, parentKeyPath)
         };
       }
 
@@ -359,7 +349,7 @@ export const parseAliasOfPath = (parentKeyPath: string, aliasKeyPath: string, ch
       }
       return {
         parentKeyPath: subPaths.join('.'),
-        leafSpec: addArrayInSpec(leafSpec, compKey, parentKeyPath)
+        leafSpec: removeUnneedArrayInSpec(leafSpec, compKey, parentKeyPath)
       };
     }