diff --git a/packages/vmind/__tests__/unit/vchartSpec/bar.test.ts b/packages/vmind/__tests__/unit/vchartSpec/bar.test.ts
index 9671c10..656a16d 100644
--- a/packages/vmind/__tests__/unit/vchartSpec/bar.test.ts
+++ b/packages/vmind/__tests__/unit/vchartSpec/bar.test.ts
@@ -200,4 +200,99 @@ describe('mergeAppendSpec of barchart', () => {
       }
     ]);
   });
+
+  it('should parse complicated path when `parentKeyPath` > spec ', () => {
+    const append = {
+      leafSpec: {
+        grid: {
+          style: {
+            strokeOpacity: 1
+          }
+        }
+      },
+      parentKeyPath: 'axes[0].grid.style'
+    };
+
+    const { newSpec } = mergeAppendSpec(merge({}, spec), append);
+
+    expect(newSpec.axes).toEqual([
+      {
+        grid: {
+          style: {
+            strokeOpacity: 1
+          }
+        }
+      }
+    ]);
+
+    const { newSpec: newSpec2 } = mergeAppendSpec(merge({}, newSpec), {
+      aliasKeyPath: 'xAxis',
+      parentKeyPath: 'axes',
+      leafSpec: {
+        axes: [
+          {
+            title: {
+              text: '城市'
+            }
+          }
+        ]
+      }
+    });
+
+    expect(newSpec2.axes).toEqual([
+      {
+        grid: {
+          style: {
+            strokeOpacity: 1
+          }
+        }
+      },
+      {
+        title: {
+          text: '城市'
+        },
+        _alias_name: 'xAxis',
+        orient: 'bottom'
+      }
+    ]);
+  });
+
+  it('should handle function', () => {
+    const append = {
+      aliasKeyPath: 'xAxis.label.style.fill',
+      leafSpec: {
+        bar: {
+          style: {
+            fill: "(datum, index) => index === 0 ? 'red' : null"
+          }
+        }
+      },
+      parentKeyPath: 'bar'
+    };
+
+    const { newSpec } = mergeAppendSpec(merge({}, spec), append);
+
+    expect(newSpec.bar.style.fill).toBeDefined();
+    expect(newSpec.bar.style.fill('test', 0)).toBe('red');
+    expect(newSpec.bar.style.fill('test', 1)).toBeNull();
+  });
+
+  it('should not not add series when has only one series', () => {
+    const append = {
+      leafSpec: {
+        'series[0].extensionMark[0].style.size': 10
+      },
+      parentKeyPath: 'series[0].extensionMark[0].style.size',
+      aliasKeyPath: 'bar.extensionMark[0].style.size'
+    };
+
+    const { newSpec } = mergeAppendSpec(merge({}, spec), append);
+    expect(newSpec.extensionMark).toEqual([
+      {
+        style: {
+          size: 10
+        }
+      }
+    ]);
+  });
 });
diff --git a/packages/vmind/__tests__/unit/vchartSpec/util.test.ts b/packages/vmind/__tests__/unit/vchartSpec/util.test.ts
index f5427d9..6b409b1 100644
--- a/packages/vmind/__tests__/unit/vchartSpec/util.test.ts
+++ b/packages/vmind/__tests__/unit/vchartSpec/util.test.ts
@@ -1,14 +1,17 @@
-import { checkDuplicatedKey } from '../../../src/atom/VChartSpec/utils';
+import { checkDuplicatedKey, convertFunctionString } from '../../../src/atom/VChartSpec/utils';
 
 describe('checkDuplicatedKey', () => {
   it('should return null when not match', () => {
     expect(checkDuplicatedKey('a.b.c', 'd')).toBeNull();
-    expect(checkDuplicatedKey('a.b.c', 'b')).toBeNull();
-
-    expect(checkDuplicatedKey('[0].a', 'a')).toBeNull();
   });
 
   it('should return correct result', () => {
+    expect(checkDuplicatedKey('[0].a', 'a')).toEqual({
+      remainKeyPath: ''
+    });
+    expect(checkDuplicatedKey('a.b.c', 'b')).toEqual({
+      remainKeyPath: 'c'
+    });
     expect(checkDuplicatedKey('[0].a', '0')).toEqual({
       remainKeyPath: 'a'
     });
@@ -29,3 +32,66 @@ describe('checkDuplicatedKey', () => {
     });
   });
 });
+
+describe('convertFunctionString', () => {
+  it('should convert arrow function string to function', () => {
+    const func1 = convertFunctionString('(datum, index) => index === 0? "red" : null');
+    expect(func1({}, 0)).toBe('red');
+    expect(func1({}, 1)).toBeNull();
+  });
+
+  it('should convert function string to function', () => {
+    const func1 = convertFunctionString('function(datum, index) { return index === 0? "red" : null }');
+    expect(func1({}, 0)).toBe('red');
+    expect(func1({}, 1)).toBeNull();
+  });
+
+  it('should not convert normal string', () => {
+    const str1 = convertFunctionString('a');
+    expect(str1).toBe('a');
+  });
+
+  it('should not convert normal object', () => {
+    const obj1 = convertFunctionString({ a: 1 });
+    expect(obj1).toEqual({ a: 1 });
+  });
+
+  it('should not convert normal array', () => {
+    const arr1 = convertFunctionString([1, 2, 3]);
+    expect(arr1).toEqual([1, 2, 3]);
+  });
+
+  it('should not convert normal number', () => {
+    const num1 = convertFunctionString(1);
+    expect(num1).toBe(1);
+  });
+
+  it('should not convert normal boolean', () => {
+    const bool1 = convertFunctionString(true);
+    expect(bool1).toBe(true);
+  });
+
+  it('should not convert normal null', () => {
+    const null1 = convertFunctionString(null);
+    expect(null1).toBeNull();
+  });
+  it('should not convert normal undefined', () => {
+    const undefined1 = convertFunctionString(undefined);
+    expect(undefined1).toBeUndefined();
+  });
+  it('should not convert normal function', () => {
+    const func1 = convertFunctionString(() => {
+      return 1;
+    });
+    expect(func1).toBeInstanceOf(Function);
+  });
+  it('should not convert normal arrow function', () => {
+    const func1 = convertFunctionString(() => 1);
+    expect(func1).toBeInstanceOf(Function);
+  });
+  it('should not convert normal object with function', () => {
+    const spec = { a: () => 1 };
+    const obj1 = convertFunctionString(spec);
+    expect(obj1.a).toEqual(spec.a);
+  });
+});
diff --git a/packages/vmind/src/atom/VChartSpec/utils.ts b/packages/vmind/src/atom/VChartSpec/utils.ts
index 59ad41a..8476eae 100644
--- a/packages/vmind/src/atom/VChartSpec/utils.ts
+++ b/packages/vmind/src/atom/VChartSpec/utils.ts
@@ -1,4 +1,4 @@
-import { isArray, isNil, isPlainObject, merge } from '@visactor/vutils';
+import { isArray, isNil, isObject, isPlainObject, isString, isValid, merge } from '@visactor/vutils';
 import type { AppendSpecInfo } from '../../types/atom';
 import { set } from '../../utils/set';
 
@@ -288,13 +288,26 @@ export const checkDuplicatedKey = (parentPath: string, key: string) => {
     }
   }
 
-  if (parentPath.startsWith(`${key}.`)) {
+  if (parentPath.startsWith(`${key}`)) {
+    let remainKeyPath = parentPath.substring(key.length);
+
+    if (remainKeyPath[0] === '.') {
+      remainKeyPath = remainKeyPath.substring(1);
+    }
+
     return {
-      remainKeyPath: parentPath.substring(key.length + 1)
+      remainKeyPath
     };
-  } else if (parentPath.startsWith(`${key}[`)) {
+  } else if (parentPath.includes(`.${key}`)) {
+    const str = `.${key}`;
+    let remainKeyPath = parentPath.substring(parentPath.indexOf(str) + str.length);
+
+    if (remainKeyPath[0] === '.') {
+      remainKeyPath = remainKeyPath.substring(1);
+    }
+
     return {
-      remainKeyPath: parentPath.substring(key.length)
+      remainKeyPath
     };
   }
 
@@ -321,10 +334,43 @@ export const reduceDuplicatedPath = (parentPath: string, spec: any): any => {
   } else if (isArray(spec) && parentPath) {
     const res = /^\[((\d)+)\]/.exec(parentPath);
 
-    if (res && +res[1] < spec.length) {
+    if (res) {
       const remainPath = parentPath.substring(res[0].length + 1);
+      const val = spec[+res[1]] ?? spec[spec.length - 1];
 
-      return remainPath ? reduceDuplicatedPath(remainPath, spec[+res[1]]) : spec[+res[1]];
+      return remainPath ? reduceDuplicatedPath(remainPath, val) : val;
+    }
+  }
+
+  return spec;
+};
+
+/**
+ * 将大模型返回的spec中的函数字符串转换成函数
+ * @param spec 转换后的spec
+ * @returns
+ */
+export const convertFunctionString = (spec: any): any => {
+  if (isPlainObject(spec)) {
+    const newSpec: any = {};
+
+    Object.keys(spec).forEach(key => {
+      newSpec[key] = convertFunctionString((spec as any)[key]);
+    });
+
+    return newSpec;
+  } else if (isArray(spec)) {
+    return spec.map(convertFunctionString);
+  }
+
+  if (isString(spec)) {
+    if (spec.includes('=>') || spec.includes('function')) {
+      try {
+        // 将函数自浮窗转换成可执行的函数
+        return new Function(`return (${spec})`)();
+      } catch (e) {
+        return spec;
+      }
     }
   }
 
@@ -332,14 +378,28 @@ export const reduceDuplicatedPath = (parentPath: string, spec: any): any => {
 };
 
 export const mergeAppendSpec = (prevSpec: any, appendSpec: AppendSpecInfo) => {
-  const { leafSpec, parentKeyPath = '', aliasKeyPath = '' } = appendSpec;
+  const { aliasKeyPath = '' } = appendSpec;
+  let { parentKeyPath = '', leafSpec } = appendSpec;
   let newSpec = merge({}, prevSpec);
 
   if (parentKeyPath) {
-    const aliasResult = parseRealPath(parentKeyPath, aliasKeyPath, newSpec);
+    let aliasResult = parseRealPath(parentKeyPath, aliasKeyPath, newSpec);
 
     if (aliasResult.appendSpec && aliasResult.appendPath) {
-      set(newSpec, aliasResult.appendPath, aliasResult.appendSpec);
+      if (aliasResult.appendPath.includes('series') && !newSpec.series) {
+        // 系列比较特殊，默认是打平在第一层的
+        leafSpec = leafSpec.series
+          ? isArray(leafSpec.series)
+            ? leafSpec.series[0]
+            : leafSpec.series
+          : parentKeyPath in leafSpec
+          ? leafSpec[parentKeyPath]
+          : leafSpec;
+        parentKeyPath = parentKeyPath.slice(parentKeyPath.indexOf('.') + 1);
+        aliasResult = { path: parentKeyPath };
+      } else {
+        set(newSpec, aliasResult.appendPath, aliasResult.appendSpec);
+      }
     }
 
     const finalParentKeyPath = aliasResult.path ?? parentKeyPath;
@@ -347,9 +407,11 @@ export const mergeAppendSpec = (prevSpec: any, appendSpec: AppendSpecInfo) => {
     set(
       newSpec,
       finalParentKeyPath,
-      reduceDuplicatedPath(
-        finalParentKeyPath,
-        aliasResult.aliasName ? reduceDuplicatedPath(aliasResult.aliasName, leafSpec) : leafSpec
+      convertFunctionString(
+        reduceDuplicatedPath(
+          finalParentKeyPath,
+          aliasResult.aliasName ? reduceDuplicatedPath(aliasResult.aliasName, leafSpec) : leafSpec
+        )
       )
     );
   } else {