diff --git a/src/locales/en.json b/src/locales/en.json
index 0ded266f..65cebd1f 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -1331,7 +1331,7 @@
   "Invalid: Please input a valid ipv4": "Invalid: Please input a valid ipv4",
   "Invalid: Please input a valid ipv6.": "Invalid: Please input a valid ipv6.",
   "Invalid: Project name can not be chinese": "Invalid: Project name can not be chinese",
-  "Invalid: Project name can not be duplicated": "Invalid: Project name can not be duplicated",
+  "Invalid: Project names in the domain can not be repeated": "Invalid: Project names in the domain can not be repeated",
   "Invalid: Quota value(s) cannot be less than the current usage value(s): { used } used.": "Invalid: Quota value(s) cannot be less than the current usage value(s): { used } used.",
   "Invalid: User Group name can not be duplicated": "Invalid: User Group name can not be duplicated",
   "Invalid: User name can not be duplicated": "Invalid: User name can not be duplicated",
diff --git a/src/locales/ko-kr.json b/src/locales/ko-kr.json
index 9a68a2d0..93d0a9ed 100644
--- a/src/locales/ko-kr.json
+++ b/src/locales/ko-kr.json
@@ -1331,7 +1331,7 @@
   "Invalid: Please input a valid ipv4": "잘못됨: 유효한 ipv4를 입력하십시오",
   "Invalid: Please input a valid ipv6.": "잘못됨: 유효한 ipv6을 입력하십시오.",
   "Invalid: Project name can not be chinese": "잘못됨: 프로젝트 이름은 중국어일 수 없습니다.",
-  "Invalid: Project name can not be duplicated": "잘못됨: 프로젝트 이름은 중복될 수 없습니다.",
+  "Invalid: Project names in the domain can not be repeated": "유효하지 않음: 도메인의 프로젝트 이름은 반복될 수 없습니다.",
   "Invalid: Quota value(s) cannot be less than the current usage value(s): { used } used.": "잘못됨: 할당량 값은 현재 사용 값보다 작을 수 없습니다: { used } 사용됨.",
   "Invalid: User Group name can not be duplicated": "잘못됨: 사용자 그룹 이름은 중복될 수 없습니다.",
   "Invalid: User name can not be duplicated": "잘못됨: 사용자 이름은 중복될 수 없습니다.",
diff --git a/src/locales/zh-hans.json b/src/locales/zh-hans.json
index a55450ec..7467b478 100644
--- a/src/locales/zh-hans.json
+++ b/src/locales/zh-hans.json
@@ -1331,7 +1331,7 @@
   "Invalid: Please input a valid ipv4": "无效：请输入有效的IPV4",
   "Invalid: Please input a valid ipv6.": "无效：请输入有效的IPV6",
   "Invalid: Project name can not be chinese": "无效：项目名称不可使用中文",
-  "Invalid: Project name can not be duplicated": "无效：项目名称不可重复",
+  "Invalid: Project names in the domain can not be repeated": "无效：域下的项目名称不能重复",
   "Invalid: Quota value(s) cannot be less than the current usage value(s): { used } used.": "无效：配额必须大于已使用数量{ used }且为整数",
   "Invalid: User Group name can not be duplicated": "无效：用户组名称不可重复",
   "Invalid: User name can not be duplicated": "无效：用户名称不可重复",
diff --git a/src/pages/identity/containers/Project/actions/Create.jsx b/src/pages/identity/containers/Project/actions/Create.jsx
index 3c23408c..f05f99ae 100644
--- a/src/pages/identity/containers/Project/actions/Create.jsx
+++ b/src/pages/identity/containers/Project/actions/Create.jsx
@@ -74,12 +74,20 @@ export class Create extends ModalAction {
     if (!nameRegexWithoutChinese.test(value)) {
       return Promise.reject(t('Invalid: Project name can not be chinese'));
     }
+    const domainId = this.formRef.current.getFieldValue('domain_id');
+    if (!domainId) {
+      return Promise.resolve();
+    }
     const {
       list: { data },
     } = this.projectStore;
-    const nameUsed = data.filter((it) => it.name === value);
+    const nameUsed = data.filter(
+      (it) => it.name === value && it.domain_id === domainId
+    );
     if (nameUsed[0]) {
-      return Promise.reject(t('Invalid: Project name can not be duplicated'));
+      return Promise.reject(
+        t('Invalid: Project names in the domain can not be repeated')
+      );
     }
     return Promise.resolve();
   };
@@ -96,6 +104,7 @@ export class Create extends ModalAction {
         validator: this.checkName,
         extra: t('Project') + t('Name can not be duplicated'),
         maxLength: 30,
+        dependencies: ['domain_id'],
       },
       domainFormItem,
       {
diff --git a/src/pages/identity/containers/Project/actions/Edit.jsx b/src/pages/identity/containers/Project/actions/Edit.jsx
index 1d6a2a4f..e8e11a1b 100644
--- a/src/pages/identity/containers/Project/actions/Edit.jsx
+++ b/src/pages/identity/containers/Project/actions/Edit.jsx
@@ -54,10 +54,15 @@ export class EditForm extends ModalAction {
       list: { data },
     } = this.store;
     const nameUsed = data.find(
-      (i) => i.name === value && i.id !== this.item.id
+      (i) =>
+        i.name === value &&
+        i.id !== this.item.id &&
+        i.domain_id === this.item.domain_id
     );
     if (nameUsed) {
-      return Promise.reject(t('Invalid: Project name can not be duplicated'));
+      return Promise.reject(
+        t('Invalid: Project names in the domain can not be repeated')
+      );
     }
     return Promise.resolve();
   };