diff --git a/packages/@core/base/shared/package.json b/packages/@core/base/shared/package.json
index ebf481bf6..70ad17c35 100644
--- a/packages/@core/base/shared/package.json
+++ b/packages/@core/base/shared/package.json
@@ -88,6 +88,7 @@
     "lodash.clonedeep": "catalog:",
     "lodash.get": "catalog:",
     "lodash.isequal": "catalog:",
+    "lodash.set": "catalog:",
     "nprogress": "catalog:",
     "tailwind-merge": "catalog:",
     "theme-colors": "catalog:"
@@ -96,6 +97,7 @@
     "@types/lodash.clonedeep": "catalog:",
     "@types/lodash.get": "catalog:",
     "@types/lodash.isequal": "catalog:",
+    "@types/lodash.set": "catalog:",
     "@types/nprogress": "catalog:"
   }
 }
diff --git a/packages/@core/base/shared/src/utils/index.ts b/packages/@core/base/shared/src/utils/index.ts
index 1bf09c713..925af1c12 100644
--- a/packages/@core/base/shared/src/utils/index.ts
+++ b/packages/@core/base/shared/src/utils/index.ts
@@ -17,3 +17,4 @@ export * from './window';
 export { default as cloneDeep } from 'lodash.clonedeep';
 export { default as get } from 'lodash.get';
 export { default as isEqual } from 'lodash.isequal';
+export { default as set } from 'lodash.set';
diff --git a/packages/@core/ui-kit/form-ui/src/use-form-context.ts b/packages/@core/ui-kit/form-ui/src/use-form-context.ts
index 0374cf326..60148bfba 100644
--- a/packages/@core/ui-kit/form-ui/src/use-form-context.ts
+++ b/packages/@core/ui-kit/form-ui/src/use-form-context.ts
@@ -7,7 +7,7 @@ import type { ExtendedFormApi, FormActions, VbenFormProps } from './types';
 import { computed, unref, useSlots } from 'vue';
 
 import { createContext } from '@vben-core/shadcn-ui';
-import { isString } from '@vben-core/shared/utils';
+import { isString, mergeWithArrayOverride, set } from '@vben-core/shared/utils';
 
 import { useForm } from 'vee-validate';
 import { object } from 'zod';
@@ -50,7 +50,7 @@ export function useFormInitial(
     const zodObject: ZodRawShape = {};
     (unref(props).schema || []).forEach((item) => {
       if (Reflect.has(item, 'defaultValue')) {
-        initialValues[item.fieldName] = item.defaultValue;
+        set(initialValues, item.fieldName, item.defaultValue);
       } else if (item.rules && !isString(item.rules)) {
         zodObject[item.fieldName] = item.rules;
       }
@@ -58,7 +58,11 @@ export function useFormInitial(
 
     const schemaInitialValues = getDefaultsForSchema(object(zodObject));
 
-    return { ...initialValues, ...schemaInitialValues };
+    const zodDefaults: Record<string, any> = {};
+    for (const key in schemaInitialValues) {
+      set(zodDefaults, key, schemaInitialValues[key]);
+    }
+    return mergeWithArrayOverride(initialValues, zodDefaults);
   }
 
   return {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5e23a946e..45d791c54 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -99,6 +99,9 @@ catalogs:
     '@types/lodash.isequal':
       specifier: ^4.5.8
       version: 4.5.8
+    '@types/lodash.set':
+      specifier: ^4.3.2
+      version: 4.3.9
     '@types/node':
       specifier: ^22.13.10
       version: 22.13.10
@@ -315,6 +318,9 @@ catalogs:
     lodash.isequal:
       specifier: ^4.5.0
       version: 4.5.0
+    lodash.set:
+      specifier: ^4.3.2
+      version: 4.3.2
     lucide-vue-next:
       specifier: ^0.469.0
       version: 0.469.0
@@ -1252,6 +1258,9 @@ importers:
       lodash.isequal:
         specifier: 'catalog:'
         version: 4.5.0
+      lodash.set:
+        specifier: 'catalog:'
+        version: 4.3.2
       nprogress:
         specifier: 'catalog:'
         version: 0.2.0
@@ -1271,6 +1280,9 @@ importers:
       '@types/lodash.isequal':
         specifier: 'catalog:'
         version: 4.5.8
+      '@types/lodash.set':
+        specifier: 'catalog:'
+        version: 4.3.9
       '@types/nprogress':
         specifier: 'catalog:'
         version: 0.2.3
@@ -4304,6 +4316,9 @@ packages:
   '@types/lodash.isequal@4.5.8':
     resolution: {integrity: sha512-uput6pg4E/tj2LGxCZo9+y27JNyB2OZuuI/T5F+ylVDYuqICLG2/ktjxx0v6GvVntAf8TvEzeQLcV0ffRirXuA==}
 
+  '@types/lodash.set@4.3.9':
+    resolution: {integrity: sha512-KOxyNkZpbaggVmqbpr82N2tDVTx05/3/j0f50Es1prxrWB0XYf9p3QNxqcbWb7P1Q9wlvsUSlCFnwlPCIJ46PQ==}
+
   '@types/lodash@4.17.16':
     resolution: {integrity: sha512-HX7Em5NYQAXKW+1T+FiuG27NGwzJfCX3s1GjOa7ujxZa52kjJLOr4FUxT+giF6Tgxv1e+/czV/iTtBw27WTU9g==}
 
@@ -7351,6 +7366,9 @@ packages:
   lodash.once@4.1.1:
     resolution: {integrity: sha512-Sb487aTOCr9drQVL8pIxOzVhafOjZN9UU54hiN8PU3uAiSV7lx1yYNpbNmex2PK6dSJoNTSJUUswT651yww3Mg==}
 
+  lodash.set@4.3.2:
+    resolution: {integrity: sha512-4hNPN5jlm/N/HLMCO43v8BXKq9Z7QdAGc/VGrRD61w8gN9g/6jF9A4L1pbUgBLCffi0w9VsXfTOij5x8iTyFvg==}
+
   lodash.snakecase@4.1.1:
     resolution: {integrity: sha512-QZ1d4xoBHYUeuouhEq3lk3Uq7ldgyFXGBhg04+oRLnIz8o9T65Eh+8YdroUwn846zchkA9yDsDl5CVVaV2nqYw==}
 
@@ -13142,6 +13160,10 @@ snapshots:
     dependencies:
       '@types/lodash': 4.17.16
 
+  '@types/lodash.set@4.3.9':
+    dependencies:
+      '@types/lodash': 4.17.16
+
   '@types/lodash@4.17.16': {}
 
   '@types/markdown-it@14.1.2':
@@ -16601,6 +16623,8 @@ snapshots:
 
   lodash.once@4.1.1: {}
 
+  lodash.set@4.3.2: {}
+
   lodash.snakecase@4.1.1: {}
 
   lodash.sortby@4.7.0: {}
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 2c4118109..b8d844aa0 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -45,6 +45,7 @@ catalog:
   '@types/lodash.clonedeep': ^4.5.9
   '@types/lodash.get': ^4.4.9
   '@types/lodash.isequal': ^4.5.8
+  '@types/lodash.set': ^4.3.2
   '@types/node': ^22.13.10
   '@types/nprogress': ^0.2.3
   '@types/postcss-import': ^14.0.3
@@ -119,6 +120,7 @@ catalog:
   lint-staged: ^15.4.3
   lodash.clonedeep: ^4.5.0
   lodash.get: ^4.4.2
+  lodash.set: ^4.3.2
   lodash.isequal: ^4.5.0
   lucide-vue-next: ^0.469.0
   medium-zoom: ^1.1.0