diff --git a/.changelog/3490.txt b/.changelog/3490.txt
new file mode 100644
index 0000000000..f0ed1c2f30
--- /dev/null
+++ b/.changelog/3490.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_ckafka_acl: optmize the value of principal
+```
diff --git a/tencentcloud/services/ckafka/resource_tc_ckafka_acl.go b/tencentcloud/services/ckafka/resource_tc_ckafka_acl.go
index 2b5da8b99b..ec81d96f82 100644
--- a/tencentcloud/services/ckafka/resource_tc_ckafka_acl.go
+++ b/tencentcloud/services/ckafka/resource_tc_ckafka_acl.go
@@ -121,7 +121,7 @@ func resourceTencentCloudCkafkaAclRead(d *schema.ResourceData, meta interface{})
 	_ = d.Set("operation_type", CKAFKA_ACL_OPERATION_TO_STRING[*info.Operation])
 	_ = d.Set("permission_type", CKAFKA_PERMISSION_TYPE_TO_STRING[*info.PermissionType])
 	_ = d.Set("host", info.Host)
-	_ = d.Set("principal", strings.TrimLeft(*info.Principal, CKAFKA_ACL_PRINCIPAL_STR))
+	_ = d.Set("principal", strings.TrimPrefix(*info.Principal, CKAFKA_ACL_PRINCIPAL_STR))
 
 	return nil
 }
diff --git a/tencentcloud/services/ckafka/resource_tc_ckafka_acl.md b/tencentcloud/services/ckafka/resource_tc_ckafka_acl.md
index 78ea951375..dd34ef4a62 100644
--- a/tencentcloud/services/ckafka/resource_tc_ckafka_acl.md
+++ b/tencentcloud/services/ckafka/resource_tc_ckafka_acl.md
@@ -5,21 +5,27 @@ Example Usage
 Ckafka Acl
 
 ```hcl
-resource "tencentcloud_ckafka_acl" "foo" {
-  instance_id     = "ckafka-f9ife4zz"
+resource "tencentcloud_ckafka_user" "example" {
+  instance_id  = "ckafka-7k5nbnem"
+  account_name = "tf-example"
+  password     = "Password@123"
+}
+
+resource "tencentcloud_ckafka_acl" "example" {
+  instance_id     = "ckafka-7k5nbnem"
   resource_type   = "TOPIC"
-  resource_name   = "topic-tf-test"
+  resource_name   = "tf-example-resource"
   operation_type  = "WRITE"
   permission_type = "ALLOW"
   host            = "*"
-  principal       = tencentcloud_ckafka_user.foo.account_name
+  principal       = tencentcloud_ckafka_user.example.account_name
 }
 ```
 
 Import
 
-Ckafka acl can be imported using the instance_id#permission_type#principal#host#operation_type#resource_type#resource_name, e.g.
+Ckafka Acl can be imported using the instance_id#permission_type#principal#host#operation_type#resource_type#resource_name, e.g.
 
 ```
-$ terraform import tencentcloud_ckafka_acl.foo ckafka-f9ife4zz#ALLOW#test#*#WRITE#TOPIC#topic-tf-test
-```
\ No newline at end of file
+$ terraform import tencentcloud_ckafka_acl.example ckafka-7k5nbnem#ALLOW#tf-example#*#WRITE#TOPIC#tf-example-resource
+```
diff --git a/website/docs/r/ckafka_acl.html.markdown b/website/docs/r/ckafka_acl.html.markdown
index b983ba9b42..31b820b681 100644
--- a/website/docs/r/ckafka_acl.html.markdown
+++ b/website/docs/r/ckafka_acl.html.markdown
@@ -16,14 +16,20 @@ Provides a resource to create a Ckafka Acl.
 ### Ckafka Acl
 
 ```hcl
-resource "tencentcloud_ckafka_acl" "foo" {
-  instance_id     = "ckafka-f9ife4zz"
+resource "tencentcloud_ckafka_user" "example" {
+  instance_id  = "ckafka-7k5nbnem"
+  account_name = "tf-example"
+  password     = "Password@123"
+}
+
+resource "tencentcloud_ckafka_acl" "example" {
+  instance_id     = "ckafka-7k5nbnem"
   resource_type   = "TOPIC"
-  resource_name   = "topic-tf-test"
+  resource_name   = "tf-example-resource"
   operation_type  = "WRITE"
   permission_type = "ALLOW"
   host            = "*"
-  principal       = tencentcloud_ckafka_user.foo.account_name
+  principal       = tencentcloud_ckafka_user.example.account_name
 }
 ```
 
@@ -49,9 +55,9 @@ In addition to all arguments above, the following attributes are exported:
 
 ## Import
 
-Ckafka acl can be imported using the instance_id#permission_type#principal#host#operation_type#resource_type#resource_name, e.g.
+Ckafka Acl can be imported using the instance_id#permission_type#principal#host#operation_type#resource_type#resource_name, e.g.
 
 ```
-$ terraform import tencentcloud_ckafka_acl.foo ckafka-f9ife4zz#ALLOW#test#*#WRITE#TOPIC#topic-tf-test
+$ terraform import tencentcloud_ckafka_acl.example ckafka-7k5nbnem#ALLOW#tf-example#*#WRITE#TOPIC#tf-example-resource
 ```