diff --git a/session_schema.go b/session_schema.go
index e9ed9ec5..110285c2 100644
--- a/session_schema.go
+++ b/session_schema.go
@@ -351,9 +351,30 @@ func (session *Session) Sync(beans ...interface{}) error {
 				if err = session.addColumn(col.Name); err != nil {
 					return err
 				}
+
+				// add column comment for postgres
+				if col.Comment != "" && engine.Dialect().URI().DBType == schemas.POSTGRES {
+					// @see: integrations/engine_test.go#TestGetColumns
+					addColumnCommentSql := fmt.Sprintf("COMMENT ON COLUMN %s.%s IS '%s'", session.engine.Quote(tbNameWithSchema), session.engine.Quote(col.Name), col.Comment)
+					_, err = session.Exec(addColumnCommentSql)
+					if err != nil {
+						return err
+					}
+				}
+
 				continue
 			}
 
+			// add column comment for postgres
+			if col.Comment != "" && engine.Dialect().URI().DBType == schemas.POSTGRES {
+				// @see: integrations/engine_test.go#TestGetColumns
+				addColumnCommentSql := fmt.Sprintf("COMMENT ON COLUMN %s.%s IS '%s'", session.engine.Quote(tbNameWithSchema), session.engine.Quote(col.Name), col.Comment)
+				_, err = session.Exec(addColumnCommentSql)
+				if err != nil {
+					return err
+				}
+			}
+
 			err = nil
 			expectedType := engine.dialect.SQLType(col)
 			curType := engine.dialect.SQLType(oriCol)