diff --git a/.changelog/3025.txt b/.changelog/3025.txt
new file mode 100644
index 0000000000..8bd0e399a3
--- /dev/null
+++ b/.changelog/3025.txt
@@ -0,0 +1,7 @@
+```release-note:enhancement
+resource/tencentcloud_mongodb_instance: remove RequiredWith on `availability_zone_list` and `hidden_zone`
+```
+
+```release-note:enhancement
+resource/tencentcloud_mongodb_sharding_instance: remove RequiredWith on `availability_zone_list` and `hidden_zone`
+```
\ No newline at end of file
diff --git a/tencentcloud/services/mongodb/resource_tc_mongodb_instance.go b/tencentcloud/services/mongodb/resource_tc_mongodb_instance.go
index 8711779d43..f81b832f86 100644
--- a/tencentcloud/services/mongodb/resource_tc_mongodb_instance.go
+++ b/tencentcloud/services/mongodb/resource_tc_mongodb_instance.go
@@ -109,7 +109,6 @@ func ResourceTencentCloudMongodbInstance() *schema.Resource {
 			Elem: &schema.Schema{
 				Type: schema.TypeString,
 			},
-			RequiredWith: []string{"hidden_zone"},
 			Description: `A list of nodes deployed in multiple availability zones. For more information, please use the API DescribeSpecInfo.
 			- Multi-availability zone deployment nodes can only be deployed in 3 different availability zones. It is not supported to deploy most nodes of the cluster in the same availability zone. For example, a 3-node cluster does not support the deployment of 2 nodes in the same zone.
 			- Version 4.2 and above are not supported.
@@ -117,11 +116,10 @@ func ResourceTencentCloudMongodbInstance() *schema.Resource {
 			- Basic network cannot be selected.`,
 		},
 		"hidden_zone": {
-			Type:         schema.TypeString,
-			Optional:     true,
-			Computed:     true,
-			RequiredWith: []string{"availability_zone_list"},
-			Description:  "The availability zone to which the Hidden node belongs. This parameter must be configured to deploy instances across availability zones.",
+			Type:        schema.TypeString,
+			Optional:    true,
+			Computed:    true,
+			Description: "The availability zone to which the Hidden node belongs. This parameter is required in cross-AZ instance deployment.",
 		},
 		"maintenance_start": {
 			Type:        schema.TypeString,
diff --git a/tencentcloud/services/mongodb/resource_tc_mongodb_sharding_instance.go b/tencentcloud/services/mongodb/resource_tc_mongodb_sharding_instance.go
index 869e731b63..7ae88cd452 100644
--- a/tencentcloud/services/mongodb/resource_tc_mongodb_sharding_instance.go
+++ b/tencentcloud/services/mongodb/resource_tc_mongodb_sharding_instance.go
@@ -42,7 +42,6 @@ func ResourceTencentCloudMongodbShardingInstance() *schema.Resource {
 			Elem: &schema.Schema{
 				Type: schema.TypeString,
 			},
-			RequiredWith: []string{"hidden_zone"},
 			Description: `A list of nodes deployed in multiple availability zones. For more information, please use the API DescribeSpecInfo.
 			- Multi-availability zone deployment nodes can only be deployed in 3 different availability zones. It is not supported to deploy most nodes of the cluster in the same availability zone. For example, a 3-node cluster does not support the deployment of 2 nodes in the same zone.
 			- Version 4.2 and above are not supported.
@@ -50,11 +49,10 @@ func ResourceTencentCloudMongodbShardingInstance() *schema.Resource {
 			- Basic network cannot be selected.`,
 		},
 		"hidden_zone": {
-			Type:         schema.TypeString,
-			Optional:     true,
-			Computed:     true,
-			RequiredWith: []string{"availability_zone_list"},
-			Description:  "The availability zone to which the Hidden node belongs. This parameter must be configured to deploy instances across availability zones.",
+			Type:        schema.TypeString,
+			Optional:    true,
+			Computed:    true,
+			Description: "The availability zone to which the Hidden node belongs. This parameter is required in cross-AZ instance deployment.",
 		},
 	}
 	basic := TencentMongodbBasicInfo()
diff --git a/website/docs/r/mongodb_instance.html.markdown b/website/docs/r/mongodb_instance.html.markdown
index 91a9d7d75b..f1ea1e64b2 100644
--- a/website/docs/r/mongodb_instance.html.markdown
+++ b/website/docs/r/mongodb_instance.html.markdown
@@ -46,7 +46,7 @@ The following arguments are supported:
 			- Read-only disaster recovery instances are not supported.
 			- Basic network cannot be selected.
 * `charge_type` - (Optional, String, ForceNew) The charge type of instance. Valid values are `PREPAID` and `POSTPAID_BY_HOUR`. Default value is `POSTPAID_BY_HOUR`. Note: TencentCloud International only supports `POSTPAID_BY_HOUR`. Caution that update operation on this field will delete old instances and create new one with new charge type.
-* `hidden_zone` - (Optional, String) The availability zone to which the Hidden node belongs. This parameter must be configured to deploy instances across availability zones.
+* `hidden_zone` - (Optional, String) The availability zone to which the Hidden node belongs. This parameter is required in cross-AZ instance deployment.
 * `maintenance_end` - (Optional, String) Maintenance window end time.
 	- The value range is any full point or half point from `00:00-23:00`, and the maintenance time duration is at least 30 minutes and at most 3 hours.
 	- The end time must be based on the start time backwards.
diff --git a/website/docs/r/mongodb_sharding_instance.html.markdown b/website/docs/r/mongodb_sharding_instance.html.markdown
index 91532ec882..131b58d2c6 100644
--- a/website/docs/r/mongodb_sharding_instance.html.markdown
+++ b/website/docs/r/mongodb_sharding_instance.html.markdown
@@ -52,7 +52,7 @@ The following arguments are supported:
 			- Read-only disaster recovery instances are not supported.
 			- Basic network cannot be selected.
 * `charge_type` - (Optional, String, ForceNew) The charge type of instance. Valid values are `PREPAID` and `POSTPAID_BY_HOUR`. Default value is `POSTPAID_BY_HOUR`. Note: TencentCloud International only supports `POSTPAID_BY_HOUR`. Caution that update operation on this field will delete old instances and create new one with new charge type.
-* `hidden_zone` - (Optional, String) The availability zone to which the Hidden node belongs. This parameter must be configured to deploy instances across availability zones.
+* `hidden_zone` - (Optional, String) The availability zone to which the Hidden node belongs. This parameter is required in cross-AZ instance deployment.
 * `mongos_cpu` - (Optional, Int) Number of mongos cpu.
 * `mongos_memory` - (Optional, Int) Mongos memory size in GB.
 * `mongos_node_num` - (Optional, Int) Number of mongos.