diff --git a/migration-tools.md b/migration-tools.md
index 133982cf917dc..2bc08cfd5f0a0 100644
--- a/migration-tools.md
+++ b/migration-tools.md
@@ -81,9 +81,7 @@ This document introduces the user scenarios, supported upstreams and downstreams
 - **Upstream**: TiDB, MySQL
 - **Downstream**: TiDB, MySQL
 - **Advantages**: Can be used to repair data in the scenario where a small amount of data is inconsistent
-- **Limitation**:
-    - Online check is not supported for data migration between MySQL and TiDB.
-    - JSON, BIT, BINARY, BLOB and other types of data are not supported.
+- **Limitation**: sync-diff-inspector has some restrictions on online checks for data migration between MySQL and TiDB, comparisons of certain data types, and checking and repairing tables without a primary key or unique index. For more information, see [Restrictions of sync-diff-inspector](/sync-diff-inspector/sync-diff-inspector-overview.md#restrictions-of-sync-diff-inspector).
 
 ## Install tools using TiUP