diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e064e678884bd90cd363b67629ea8e7466a59cb..973165af1febf06d568f1faadd36a217d514d1bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ Please mark all change in change log and use the issue from GitHub
 # Milvus 0.8.0 (TBD)
 
 ## Bug
+-   \#1762 Server is not forbidden to create new partition which tag is "_default"
 
 ## Feature
 
diff --git a/core/src/server/delivery/request/CreatePartitionRequest.cpp b/core/src/server/delivery/request/CreatePartitionRequest.cpp
index fecd2ff72d782b05f3bec198884364f5d2b40883..a361c0e8ef431213acc389b1c959649ae382b667 100644
--- a/core/src/server/delivery/request/CreatePartitionRequest.cpp
+++ b/core/src/server/delivery/request/CreatePartitionRequest.cpp
@@ -47,6 +47,10 @@ CreatePartitionRequest::OnExecute() {
             return status;
         }
 
+        if (tag_ == milvus::engine::DEFAULT_PARTITON_TAG) {
+            return Status(SERVER_INVALID_PARTITION_TAG, "'_default' is built-in partition tag");
+        }
+
         status = ValidationUtil::ValidatePartitionTags({tag_});
         fiu_do_on("CreatePartitionRequest.OnExecute.invalid_partition_name",
                   status = Status(milvus::SERVER_UNEXPECTED_ERROR, ""));
diff --git a/core/src/utils/ValidationUtil.cpp b/core/src/utils/ValidationUtil.cpp
index 39dbc5c23bd1d1eeabf1d06acd0073d162ee28a8..0808ca582d7c2f38e45ee93fc929c381f2cd68d6 100644
--- a/core/src/utils/ValidationUtil.cpp
+++ b/core/src/utils/ValidationUtil.cpp
@@ -422,7 +422,7 @@ ValidationUtil::ValidatePartitionTags(const std::vector<std::string>& partition_
         if (valid_tag.empty()) {
             std::string msg = "Invalid partition tag: " + valid_tag + ". " + "Partition tag should not be empty.";
             SERVER_LOG_ERROR << msg;
-            return Status(SERVER_INVALID_TABLE_NAME, msg);
+            return Status(SERVER_INVALID_PARTITION_TAG, msg);
         }
 
         // max length of partition tag