diff --git a/.changelog/3094.txt b/.changelog/3094.txt
new file mode 100644
index 0000000000..04653ede17
--- /dev/null
+++ b/.changelog/3094.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_identity_center_user: params user_name unsupport change
+```
diff --git a/tencentcloud/services/tco/resource_tc_identity_center_user.go b/tencentcloud/services/tco/resource_tc_identity_center_user.go
index 4da3fc3fb0..cefd1753d6 100644
--- a/tencentcloud/services/tco/resource_tc_identity_center_user.go
+++ b/tencentcloud/services/tco/resource_tc_identity_center_user.go
@@ -256,7 +256,7 @@ func resourceTencentCloudIdentityCenterUserUpdate(d *schema.ResourceData, meta i
 
 	ctx := tccommon.NewResourceLifeCycleHandleFuncContext(context.Background(), logId, d, meta)
 
-	immutableArgs := []string{"zone_id"}
+	immutableArgs := []string{"zone_id", "user_name"}
 	for _, v := range immutableArgs {
 		if d.HasChange(v) {
 			return fmt.Errorf("argument `%s` cannot be changed", v)
diff --git a/tencentcloud/services/tco/resource_tc_identity_center_user.md b/tencentcloud/services/tco/resource_tc_identity_center_user.md
index f007a364a0..46321f53ea 100644
--- a/tencentcloud/services/tco/resource_tc_identity_center_user.md
+++ b/tencentcloud/services/tco/resource_tc_identity_center_user.md
@@ -3,17 +3,32 @@ Provides a resource to create an identity center user
 Example Usage
 
 ```hcl
-resource "tencentcloud_identity_center_user" "identity_center_user" {
-    zone_id = "z-xxxxxx"
-    user_name = "test-user"
-    description = "test"
+resource "tencentcloud_identity_center_user" "example" {
+  zone_id     = "z-1os7c9tyugct"
+  user_name   = "tf-example"
+  description = "desc."
+}
+```
+
+Or
+
+```hcl
+resource "tencentcloud_identity_center_user" "example" {
+  zone_id      = "z-1os7c9tyugct"
+  user_name    = "tf-example"
+  description  = "desc."
+  first_name   = "FirstName"
+  last_name    = "LastName"
+  display_name = "DisplayName"
+  email        = "example@tencent.com"
+  user_status  = "Enabled"
 }
 ```
 
 Import
 
-organization identity_center_user can be imported using the id, e.g.
+organization identity center user can be imported using the id, e.g.
 
 ```
-terraform import tencentcloud_identity_center_user.identity_center_user ${zoneId}#${userId}
+terraform import tencentcloud_identity_center_user.example z-1os7c9tyugct#u-rdvm4xdqi8pr
 ```
diff --git a/website/docs/r/identity_center_user.html.markdown b/website/docs/r/identity_center_user.html.markdown
index 970c05a8d2..85c38760fc 100644
--- a/website/docs/r/identity_center_user.html.markdown
+++ b/website/docs/r/identity_center_user.html.markdown
@@ -14,10 +14,25 @@ Provides a resource to create an identity center user
 ## Example Usage
 
 ```hcl
-resource "tencentcloud_identity_center_user" "identity_center_user" {
-  zone_id     = "z-xxxxxx"
-  user_name   = "test-user"
-  description = "test"
+resource "tencentcloud_identity_center_user" "example" {
+  zone_id     = "z-1os7c9tyugct"
+  user_name   = "tf-example"
+  description = "desc."
+}
+```
+
+### Or
+
+```hcl
+resource "tencentcloud_identity_center_user" "example" {
+  zone_id      = "z-1os7c9tyugct"
+  user_name    = "tf-example"
+  description  = "desc."
+  first_name   = "FirstName"
+  last_name    = "LastName"
+  display_name = "DisplayName"
+  email        = "example@tencent.com"
+  user_status  = "Enabled"
 }
 ```
 
@@ -47,9 +62,9 @@ In addition to all arguments above, the following attributes are exported:
 
 ## Import
 
-organization identity_center_user can be imported using the id, e.g.
+organization identity center user can be imported using the id, e.g.
 
 ```
-terraform import tencentcloud_identity_center_user.identity_center_user ${zoneId}#${userId}
+terraform import tencentcloud_identity_center_user.example z-1os7c9tyugct#u-rdvm4xdqi8pr
 ```