diff --git a/.changelog/3271.txt b/.changelog/3271.txt
new file mode 100644
index 0000000000..3ae00515e5
--- /dev/null
+++ b/.changelog/3271.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_vpn_ssl_server: update doc
+```
\ No newline at end of file
diff --git a/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.go b/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.go
index ef8b948fa0..187d6b4df8 100644
--- a/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.go
+++ b/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.go
@@ -60,24 +60,24 @@ func ResourceTencentCloudVpnSslServer() *schema.Resource {
 			"ssl_vpn_port": {
 				Type:        schema.TypeInt,
 				Optional:    true,
-				Description: "The port of ssl vpn. Default value: 1194.",
+				Description: "The port of ssl vpn. Currently only supports UDP. Default value: 1194.",
 			},
 			"integrity_algorithm": {
 				Type:        schema.TypeString,
 				Optional:    true,
-				Description: "The integrity algorithm. Valid values: SHA1, MD5 and NONE. Default value: NONE.",
+				Description: "The integrity algorithm. Valid values: SHA1. Default value: SHA1.",
 			},
 			"encrypt_algorithm": {
 				Type:     schema.TypeString,
 				Optional: true,
-				Description: "The encrypt algorithm. Valid values: AES-128-CBC, AES-192-CBC, AES-256-CBC, NONE." +
-					"Default value: NONE.",
+				Description: "The encrypt algorithm. Valid values: AES-128-CBC, AES-192-CBC, AES-256-CBC." +
+					"Default value: AES-128-CBC.",
 			},
 			"compress": {
 				Type:        schema.TypeBool,
 				Optional:    true,
 				Default:     svccvm.FALSE,
-				Description: "need compressed. Default value: False.",
+				Description: "Need compressed. Currently is not supports compress. Default value: False.",
 			},
 		},
 	}
@@ -114,7 +114,7 @@ func resourceTencentCloudVpnSslServerCreate(d *schema.ResourceData, meta interfa
 	if v, ok := d.GetOk("ssl_vpn_protocol"); ok {
 		request.SslVpnProtocol = helper.String(v.(string))
 	}
-	if v, ok := d.GetOk("ssl_vpn_port"); ok {
+	if v, ok := d.GetOkExists("ssl_vpn_port"); ok {
 		request.SslVpnPort = helper.IntInt64(v.(int))
 	}
 	if v, ok := d.GetOk("integrity_algorithm"); ok {
@@ -123,7 +123,7 @@ func resourceTencentCloudVpnSslServerCreate(d *schema.ResourceData, meta interfa
 	if v, ok := d.GetOk("encrypt_algorithm"); ok {
 		request.EncryptAlgorithm = helper.String(v.(string))
 	}
-	if v, ok := d.GetOk("compress"); ok {
+	if v, ok := d.GetOkExists("compress"); ok {
 		request.Compress = helper.Bool(v.(bool))
 	}
 
@@ -244,7 +244,7 @@ func resourceTencentCloudVpnSslServerUpdate(d *schema.ResourceData, meta interfa
 		if v, ok := d.GetOk("ssl_vpn_protocol"); ok {
 			request.SslVpnProtocol = helper.String(v.(string))
 		}
-		if v, ok := d.GetOk("ssl_vpn_port"); ok {
+		if v, ok := d.GetOkExists("ssl_vpn_port"); ok {
 			request.SslVpnPort = helper.IntInt64(v.(int))
 		}
 		if v, ok := d.GetOk("integrity_algorithm"); ok {
diff --git a/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.md b/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.md
index 813f8320d2..2de00556ea 100644
--- a/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.md
+++ b/tencentcloud/services/vpn/resource_tc_vpn_ssl_server.md
@@ -3,18 +3,18 @@ Provide a resource to create a VPN SSL Server.
 Example Usage
 
 ```hcl
-resource "tencentcloud_vpn_ssl_server" "server" {
-  local_address       = [
+resource "tencentcloud_vpn_ssl_server" "example" {
+  local_address = [
     "10.0.0.0/17",
   ]
   remote_address      = "11.0.0.0/16"
   ssl_vpn_server_name = "helloworld"
   vpn_gateway_id      = "vpngw-335lwf7d"
-  ssl_vpn_protocol = "UDP"
-  ssl_vpn_port = 1194
+  ssl_vpn_protocol    = "UDP"
+  ssl_vpn_port        = 1194
   integrity_algorithm = "MD5"
-  encrypt_algorithm = "AES-128-CBC"
-  compress = true
+  encrypt_algorithm   = "AES-128-CBC"
+  compress            = true
 }
 ```
 
@@ -23,5 +23,5 @@ Import
 VPN SSL Server can be imported, e.g.
 
 ```
-$ terraform import tencentcloud_vpn_ssl_server.server vpn-server-id
+$ terraform import tencentcloud_vpn_ssl_server.example vpns-cik6bjct
 ```
\ No newline at end of file
diff --git a/website/docs/r/vpn_ssl_server.html.markdown b/website/docs/r/vpn_ssl_server.html.markdown
index 87fd70c60d..7c2efeeb7b 100644
--- a/website/docs/r/vpn_ssl_server.html.markdown
+++ b/website/docs/r/vpn_ssl_server.html.markdown
@@ -14,7 +14,7 @@ Provide a resource to create a VPN SSL Server.
 ## Example Usage
 
 ```hcl
-resource "tencentcloud_vpn_ssl_server" "server" {
+resource "tencentcloud_vpn_ssl_server" "example" {
   local_address = [
     "10.0.0.0/17",
   ]
@@ -37,10 +37,10 @@ The following arguments are supported:
 * `remote_address` - (Required, String) Remote CIDR for client.
 * `ssl_vpn_server_name` - (Required, String) The name of ssl vpn server to be created.
 * `vpn_gateway_id` - (Required, String, ForceNew) VPN gateway ID.
-* `compress` - (Optional, Bool) need compressed. Default value: False.
-* `encrypt_algorithm` - (Optional, String) The encrypt algorithm. Valid values: AES-128-CBC, AES-192-CBC, AES-256-CBC, NONE.Default value: NONE.
-* `integrity_algorithm` - (Optional, String) The integrity algorithm. Valid values: SHA1, MD5 and NONE. Default value: NONE.
-* `ssl_vpn_port` - (Optional, Int) The port of ssl vpn. Default value: 1194.
+* `compress` - (Optional, Bool) Need compressed. Currently is not supports compress. Default value: False.
+* `encrypt_algorithm` - (Optional, String) The encrypt algorithm. Valid values: AES-128-CBC, AES-192-CBC, AES-256-CBC.Default value: AES-128-CBC.
+* `integrity_algorithm` - (Optional, String) The integrity algorithm. Valid values: SHA1. Default value: SHA1.
+* `ssl_vpn_port` - (Optional, Int) The port of ssl vpn. Currently only supports UDP. Default value: 1194.
 * `ssl_vpn_protocol` - (Optional, String) The protocol of ssl vpn. Default value: UDP.
 
 ## Attributes Reference
@@ -56,6 +56,6 @@ In addition to all arguments above, the following attributes are exported:
 VPN SSL Server can be imported, e.g.
 
 ```
-$ terraform import tencentcloud_vpn_ssl_server.server vpn-server-id
+$ terraform import tencentcloud_vpn_ssl_server.example vpns-cik6bjct
 ```