diff --git a/frontend/platform_admin/src/api/http.ts b/frontend/platform_admin/src/api/http.ts
index 916f614..9d68dc8 100644
--- a/frontend/platform_admin/src/api/http.ts
+++ b/frontend/platform_admin/src/api/http.ts
@@ -5,6 +5,17 @@ export const tokenStorageKey = 'token';
 
 export type PageResult<T> = { total: number; list: T[] };
 
+// 将后端 SDK 的通用英文错误转换为面向用户的中文提示。
+const API_ERROR_MESSAGES: Record<string, string> = {
+  'Invalid Argument': '请求参数不正确，请检查填写内容',
+};
+
+// 优先保留后端提供的具体中文信息，仅翻译已知的通用英文错误。
+function localizeApiErrorMessage(message?: string) {
+  if (!message) return '请求失败';
+  return API_ERROR_MESSAGES[message.trim()] ?? message;
+}
+
 export async function request<T>(path: string, init?: RequestInit): Promise<T> {
   const token = localStorage.getItem(tokenStorageKey);
   let response: Response;
@@ -21,6 +32,8 @@ export async function request<T>(path: string, init?: RequestInit): Promise<T> {
     throw new Error('无法连接服务器，请确认服务已启动');
   }
   const payload = (await response.json()) as { code?: number; message?: string; details?: T };
-  if (!response.ok || payload.code !== 0) throw new Error(payload.message || '请求失败');
+  if (!response.ok || payload.code !== 0) {
+    throw new Error(localizeApiErrorMessage(payload.message));
+  }
   return payload.details as T;
 }
diff --git a/frontend/platform_admin/src/views/shared/CrudListPage.vue b/frontend/platform_admin/src/views/shared/CrudListPage.vue
index 659b562..0721ba7 100644
--- a/frontend/platform_admin/src/views/shared/CrudListPage.vue
+++ b/frontend/platform_admin/src/views/shared/CrudListPage.vue
@@ -241,6 +241,7 @@
         <a-select v-else-if="field.type === 'identity' || field.type === 'identity-list'" v-model="actionForm[field.key]" :multiple="field.type === 'identity-list'" allow-search :loading="relationLoading[field.relation ?? '']" @search="(value: string) => searchRelation(field.relation, value)">
           <a-option v-for="option in relationOptions[field.relation ?? ''] ?? []" :key="String(option.identity)" :value="String(option.identity)">{{ optionLabel(option) }}</a-option>
         </a-select>
+        <a-input-password v-else-if="field.type === 'password'" v-model="actionForm[field.key]" />
         <a-input v-else v-model="actionForm[field.key]" />
       </a-form-item>
     </a-form>
@@ -310,6 +311,22 @@ const roleOptions = ref<PlatformRole[]>([]);
 const relationOptions = reactive<Record<string, Row[]>>({});
 const relationLoading = reactive<Record<string, boolean>>({});
 const relationSearchTimers = new Map<string, ReturnType<typeof setTimeout>>();
+// 账户密码规则与后端 AccountPasswordMinLength 保持一致。
+const ACCOUNT_PASSWORD_MIN_LENGTH = 6;
+const ACCOUNT_PASSWORD_LENGTH_MESSAGE = '密码长度不能少于6个字符';
+
+// 检查当前表单中的密码字段，按 Unicode 字符数与后端规则对齐。
+function hasInvalidPassword(
+  fields: ResourceField[],
+  values: Record<string, any>,
+) {
+  return fields.some(
+    (field) =>
+      field.type === 'password' &&
+      !isMissingField(values[field.key]) &&
+      Array.from(String(values[field.key])).length < ACCOUNT_PASSWORD_MIN_LENGTH,
+  );
+}
 const managedOwnerIdentity = computed(() =>
   typeof route.query.owner_identity === 'string' ? route.query.owner_identity : '',
 );
@@ -683,6 +700,13 @@ async function saveAccount() {
     Message.warning('请填写用户名和密码');
     return;
   }
+  if (
+    !accountEditingIdentity.value &&
+    Array.from(String(accountForm.password ?? '')).length < ACCOUNT_PASSWORD_MIN_LENGTH
+  ) {
+    Message.warning(ACCOUNT_PASSWORD_LENGTH_MESSAGE);
+    return;
+  }
   accountSaving.value = true;
   try {
     const payload: Record<string, unknown> = {
@@ -873,6 +897,10 @@ async function submitDetailAction() {
     Message.warning('请填写必填字段');
     return;
   }
+  if (hasInvalidPassword(action.fields ?? [], actionForm)) {
+    Message.warning(ACCOUNT_PASSWORD_LENGTH_MESSAGE);
+    return;
+  }
   await executeDetailAction(action);
 }
 
@@ -912,6 +940,10 @@ async function save() {
     Message.warning('请填写必填字段');
     return;
   }
+  if (hasInvalidPassword(formFields.value, form)) {
+    Message.warning(ACCOUNT_PASSWORD_LENGTH_MESSAGE);
+    return;
+  }
   saving.value = true;
   try {
     const payload = buildResourcePayload(