diff --git a/crates/dbx-core/src/schema_diff.rs b/crates/dbx-core/src/schema_diff.rs
index 68a2f75a69..37138e84a8 100644
--- a/crates/dbx-core/src/schema_diff.rs
+++ b/crates/dbx-core/src/schema_diff.rs
@@ -5757,8 +5757,9 @@ fn generate_schema_sync_sql_inner(
                                 }
                             } else if profile.alter_uses_modify_column {
                                 if column.changes.iter().any(|change| !change.starts_with("order:")) {
+                                    let modify_keyword = profile.alter_modify_keyword();
                                     parts.push(format!(
-                                        "  MODIFY COLUMN {}",
+                                        "  {modify_keyword} {}",
                                         column_def(&mapped, db_type, source_dialect)
                                     ));
                                 }
@@ -8145,6 +8146,14 @@ mod tests {
         }
     }
 
+    #[test]
+    fn dameng_modify_column_uses_modify_without_column_keyword() {
+        let diffs = make_col_diffs(&[("name", "varchar(64)")], &[("name", "varchar(32)")], false);
+        let sql = gen_sql(wrap_table_diff("tbxx", diffs), DatabaseType::Dameng, None);
+        assert!(sql.contains("MODIFY NAME varchar(64)"), "Dameng modify: {sql}");
+        assert!(!sql.contains("MODIFY COLUMN"), "Dameng must omit COLUMN: {sql}");
+    }
+
     // -- 25. Rename with nullable change --
     #[test]
     fn rename_with_nullable_change() {
diff --git a/crates/dbx-core/src/sql_dialect/ddl_profile.rs b/crates/dbx-core/src/sql_dialect/ddl_profile.rs
index efa125f787..fe72c95a2a 100644
--- a/crates/dbx-core/src/sql_dialect/ddl_profile.rs
+++ b/crates/dbx-core/src/sql_dialect/ddl_profile.rs
@@ -209,6 +209,14 @@ impl DdlDialectProfile {
         }
     }
 
+    pub fn alter_modify_keyword(&self) -> &'static str {
+        if self.database_type == DatabaseType::Dameng {
+            "MODIFY"
+        } else {
+            "MODIFY COLUMN"
+        }
+    }
+
     /// Replace `{key}` placeholders. Unknown keys are left unchanged.
     pub fn render_template(template: &str, vars: &[(&str, &str)]) -> String {
         let mut out = template.to_string();
@@ -759,6 +767,12 @@ pub fn profile_for(db_type: DatabaseType) -> DdlDialectProfile {
         // MySQL family
         Mysql | Doris | StarRocks | Goldendb | Sundb | Databend | Gbase | ManticoreSearch => mysql_family(db_type),
 
+        Dameng => {
+            let mut profile = oracle_family(db_type);
+            profile.alter_uses_modify_column = true;
+            profile
+        }
+
         // PostgreSQL family
         Postgres | Redshift | Gaussdb | Kingbase | Highgo | Vastbase | OpenGauss | Kwdb | Uxdb => {
             postgres_family(db_type)
@@ -775,7 +789,7 @@ pub fn profile_for(db_type: DatabaseType) -> DdlDialectProfile {
         }
 
         // Oracle family
-        Oracle | Dameng | OceanbaseOracle | Yashandb | Xugu | Iris => oracle_family(db_type),
+        Oracle | OceanbaseOracle | Yashandb | Xugu | Iris => oracle_family(db_type),
 
         // SQL Server (not Access)
         SqlServer => sqlserver_family(db_type),