diff --git a/src/sql/parser/ob_parser.h b/src/sql/parser/ob_parser.h
index 666fd739c9..bed327b6b2 100644
--- a/src/sql/parser/ob_parser.h
+++ b/src/sql/parser/ob_parser.h
@@ -77,7 +77,7 @@ public:
   //  situation we will try find ';' delimiter to parser part of string in case of save memory,
   //  but this maybe parser error and throw error info. However, we will still try parser remain
   //  string when parse part of string failed, if we throw parse part error info, maybe will let
-  //  someone misunderstand have bug, So, we introduce this mark to decide to throw parser erorr.
+  //  someone misunderstand have bug, So, we introduce this mark to decide to throw parser error.
   //  eg: select '123;' from dual; select '123' from dual;
   int parse_sql(const common::ObString &stmt,
                 ParseResult &parse_result,
diff --git a/src/sql/parser/parse_malloc.cpp b/src/sql/parser/parse_malloc.cpp
index bb817a188f..ba334d0a88 100644
--- a/src/sql/parser/parse_malloc.cpp
+++ b/src/sql/parser/parse_malloc.cpp
@@ -33,7 +33,7 @@ void *malloc_parentheses_info(const size_t nbyte, void *malloc_pool)
   return ptr;
 }
 
-// get memory from the thread obStringBuf, and not release untill thread quits
+// get memory from the thread obStringBuf, and not release until thread quits
 void *parse_malloc(const size_t nbyte, void *malloc_pool)
 {
   void *ptr = NULL;
diff --git a/src/sql/parser/sql_parser_base.h b/src/sql/parser/sql_parser_base.h
index 62881775b4..afb101c801 100644
--- a/src/sql/parser/sql_parser_base.h
+++ b/src/sql/parser/sql_parser_base.h
@@ -240,7 +240,7 @@ do {
     setup_token_pos_info(node, word_start - 1, word_end - word_start + 1);  \
   } while (0)
 
-//oralce下生成非保留关键字结点请使用该宏,区别于mysql的是做了大写的转换
+//oracle下生成非保留关键字结点请使用该宏,区别于mysql的是做了大写的转换
 #define get_oracle_non_reserved_node(node, malloc_pool, expr_start, expr_end) \
   do {                                                                 \
     malloc_terminal_node(node, malloc_pool, T_IDENT);                   \
diff --git a/src/sql/rewrite/ob_query_range.cpp b/src/sql/rewrite/ob_query_range.cpp
index 4d05fad9ad..3ec825799b 100644
--- a/src/sql/rewrite/ob_query_range.cpp
+++ b/src/sql/rewrite/ob_query_range.cpp
@@ -4545,7 +4545,7 @@ int ObQueryRange::do_row_gt_and(ObKeyPart *l_gt, ObKeyPart *r_gt, ObKeyPart  *&r
 
 
 //  AND single key part (itself) and items in item_next_ list
-//  Each item in item_next_ list must be unkown item untill physical plan open
+//  Each item in item_next_ list must be unkown item until physical plan open
 //
 //  E.g.
 //       (A1 and ?1 and ?2 and ... and ?m) and (A2 and ?I and ?II and ... and ?n)
diff --git a/src/sql/rewrite/ob_query_range.h b/src/sql/rewrite/ob_query_range.h
index edc9e4a79f..c6a160aee7 100644
--- a/src/sql/rewrite/ob_query_range.h
+++ b/src/sql/rewrite/ob_query_range.h
@@ -406,7 +406,7 @@ public:
                                 const common::ObDataTypeCastParams &dtc_params);
 
   // get_tablet_ranges gets range of a index.
-  // This function can not be used untill physical plan is opened.
+  // This function can not be used until physical plan is opened.
 
   virtual int get_tablet_ranges(ObQueryRangeArray &ranges,
                                 bool &all_single_value_ranges,
diff --git a/src/storage/ls/ob_ls_tablet_service.cpp b/src/storage/ls/ob_ls_tablet_service.cpp
index d84036a1f5..02765eb4fe 100755
--- a/src/storage/ls/ob_ls_tablet_service.cpp
+++ b/src/storage/ls/ob_ls_tablet_service.cpp
@@ -6180,7 +6180,7 @@ int ObLSTabletService::check_need_rollback_in_transfer_for_4377_(const transacti
     // read from origin tablet, if there's inconsistent, it should throw 4377 error
     // CASE 2.2: transfer_scn_ is valid, the transfer_scn_ is backfilled, it means that
     // tablet has started to transfer out. If it's the first transfer, we should
-    // throw 4377 erorr, otherwise we should compare the transfer_scn_ with the tx_scn,
+    // throw 4377 error, otherwise we should compare the transfer_scn_ with the tx_scn,
     // and decide to rollback the transaction or throw 4377 error.
     // However, we can not be sure about whether this transfer out is the first transfer or not.
     // So we consider all the transfer out status as not the first transfer here, to avoid