diff --git a/.changelog/2917.txt b/.changelog/2917.txt
new file mode 100644
index 0000000000..0bbb3ab2a6
--- /dev/null
+++ b/.changelog/2917.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_cam_role: update the verification rules for field `document`
+```
\ No newline at end of file
diff --git a/tencentcloud/services/cam/resource_tc_cam_role.go b/tencentcloud/services/cam/resource_tc_cam_role.go
index 029b614150..7d09c059b0 100644
--- a/tencentcloud/services/cam/resource_tc_cam_role.go
+++ b/tencentcloud/services/cam/resource_tc_cam_role.go
@@ -98,14 +98,12 @@ func resourceTencentCloudCamRoleCreate(d *schema.ResourceData, meta interface{})
 
 	name := d.Get("name").(string)
 	document := d.Get("document").(string)
-
-	camService := CamService{
-		client: meta.(tccommon.ProviderMeta).GetAPIV3Conn(),
+	camService := CamService{client: meta.(tccommon.ProviderMeta).GetAPIV3Conn()}
+	documentErr := camService.PolicyDocumentForceCheck(document)
+	if documentErr != nil {
+		return documentErr
 	}
-	//documentErr := camService.PolicyDocumentForceCheck(document)
-	//if documentErr != nil {
-	//	return documentErr
-	//}
+
 	request := cam.NewCreateRoleRequest()
 	request.RoleName = &name
 	request.PolicyDocument = &document
diff --git a/tencentcloud/services/cam/service_tencentcloud_cam.go b/tencentcloud/services/cam/service_tencentcloud_cam.go
index 474b9e5433..8c0c7a2fba 100644
--- a/tencentcloud/services/cam/service_tencentcloud_cam.go
+++ b/tencentcloud/services/cam/service_tencentcloud_cam.go
@@ -1191,8 +1191,8 @@ func (me *CamService) PolicyDocumentForceCheck(document string) error {
 	type Statement struct {
 		Resource interface{} `json:"resource"`
 		//to avoid json unmarshal eats up with '/'
-		Action    []json.RawMessage `json:"action"`
-		Principal Principal         `json:"principal"`
+		Action    interface{} `json:"action"`
+		Principal Principal   `json:"principal"`
 	}
 	type Document struct {
 		Version   string      `json:"version"`
@@ -1212,15 +1212,9 @@ func (me *CamService) PolicyDocumentForceCheck(document string) error {
 		}
 
 		if state.Action != nil {
-			if reflect.TypeOf(state.Action) == reflect.TypeOf("string") {
-				return fmt.Errorf("The format of `action` in policy document is invalid, its type must be array.")
-			}
-
-		}
-		//multi value case in elemant `principal.qcs`:input :root/[uin of the user], output:[uin of the user]
-		for _, qcs := range state.Principal.Qcs {
-			if strings.Contains(qcs, "root") {
-				return fmt.Errorf("`root` format is not supported, please replace it with uin.")
+			actionType := reflect.TypeOf(state.Action).Kind()
+			if actionType != reflect.String && actionType != reflect.Slice {
+				return fmt.Errorf("The format of `action` in policy document is invalid, its type must be array or string.")
 			}
 		}
 	}