diff --git a/docs/en/docs/sql-manual/sql-reference/Data-Types/STRUCT.md b/docs/en/docs/sql-manual/sql-reference/Data-Types/STRUCT.md
index e0a3a506f45349..bf3b2d1d4c6794 100644
--- a/docs/en/docs/sql-manual/sql-reference/Data-Types/STRUCT.md
+++ b/docs/en/docs/sql-manual/sql-reference/Data-Types/STRUCT.md
@@ -58,9 +58,7 @@ DATEV2, DATETIME, DATETIMEV2, CHAR, VARCHAR, STRING
 We have a todo list for future version:
 
 ```
-TODO:
-	1、支持 COMMENT
-	2、支持嵌套 STRUCT 或其他的复杂类型
+TODO:支持嵌套 STRUCT 或其他的复杂类型
 ```
 
 ### example
@@ -123,4 +121,4 @@ mysql> select * from struct_test;
 
 ### keywords
 
-    STRUCT
\ No newline at end of file
+    STRUCT
diff --git a/docs/zh-CN/docs/sql-manual/sql-reference/Data-Types/STRUCT.md b/docs/zh-CN/docs/sql-manual/sql-reference/Data-Types/STRUCT.md
index db3a3997bce0bc..39ec42b21251a5 100644
--- a/docs/zh-CN/docs/sql-manual/sql-reference/Data-Types/STRUCT.md
+++ b/docs/zh-CN/docs/sql-manual/sql-reference/Data-Types/STRUCT.md
@@ -56,9 +56,7 @@ DATEV2, DATETIME, DATETIMEV2, CHAR, VARCHAR, STRING
 在将来的版本我们还将完善：
 
 ```
-TODO:
-	1、支持 COMMENT
-	2、支持嵌套 STRUCT 或其他的复杂类型
+TODO:支持嵌套 STRUCT 或其他的复杂类型
 ```
 
 ### example
@@ -123,4 +121,4 @@ mysql> select * from struct_test;
 
 ### keywords
 
-    STRUCT
\ No newline at end of file
+    STRUCT
diff --git a/fe/fe-common/src/main/java/org/apache/doris/catalog/StructField.java b/fe/fe-common/src/main/java/org/apache/doris/catalog/StructField.java
index 20ef2cb1358e51..488e477a07eb95 100644
--- a/fe/fe-common/src/main/java/org/apache/doris/catalog/StructField.java
+++ b/fe/fe-common/src/main/java/org/apache/doris/catalog/StructField.java
@@ -23,11 +23,8 @@
 
 import com.google.common.base.Strings;
 import com.google.gson.annotations.SerializedName;
+import org.apache.commons.lang3.StringUtils;
 
-/**
- * TODO: Support comments for struct fields. The Metastore does not properly store
- * comments of struct fields. We set comment to null to avoid compatibility issues.
- */
 public class StructField {
     @SerializedName(value = "name")
     protected final String name;
@@ -57,6 +54,10 @@ public StructField(String name, Type type) {
         this(name, type, null, true);
     }
 
+    public StructField(String name, Type type, String comment) {
+        this(name, type, comment, true);
+    }
+
     public StructField(Type type) {
         this(DEFAULT_FIELD_NAME, type, null, true);
     }
@@ -96,7 +97,7 @@ public String toSql(int depth) {
         if (type != null) {
             sb.append(":").append(typeSql);
         }
-        if (comment != null) {
+        if (StringUtils.isNotBlank(comment)) {
             sb.append(String.format(" COMMENT '%s'", comment));
         }
         return sb.toString();
@@ -116,7 +117,7 @@ public String prettyPrint(int lpad) {
             typeStr = typeStr.substring(lpad);
             sb.append(":").append(typeStr);
         }
-        if (comment != null) {
+        if (StringUtils.isNotBlank(comment)) {
             sb.append(String.format(" COMMENT '%s'", comment));
         }
         return sb.toString();
@@ -143,9 +144,6 @@ public boolean matchesField(StructField f) {
     public void toThrift(TTypeDesc container, TTypeNode node) {
         TStructField field = new TStructField();
         field.setName(name);
-        if (comment != null) {
-            field.setComment(comment);
-        }
         field.setContainsNull(containsNull);
         node.struct_fields.add(field);
         type.toThrift(container);
diff --git a/fe/fe-core/src/main/cup/sql_parser.cup b/fe/fe-core/src/main/cup/sql_parser.cup
index 305e0334272929..5967991ec403d5 100644
--- a/fe/fe-core/src/main/cup/sql_parser.cup
+++ b/fe/fe-core/src/main/cup/sql_parser.cup
@@ -6328,8 +6328,8 @@ map_expr ::=
   ;
 
 struct_field ::=
-  ident:name COLON type:type
-  {: RESULT = new StructField(name, type); :}
+  ident:name COLON type:type opt_comment:comment
+  {: RESULT = new StructField(name, type, comment); :}
   ;
 
 struct_field_list ::=
diff --git a/regression-test/suites/query_p0/show/test_complex_type_unique_key.groovy b/regression-test/suites/query_p0/show/test_complex_type_unique_key.groovy
index 6978813bbae07a..8417fc4865a2c2 100644
--- a/regression-test/suites/query_p0/show/test_complex_type_unique_key.groovy
+++ b/regression-test/suites/query_p0/show/test_complex_type_unique_key.groovy
@@ -30,7 +30,7 @@ suite("test_complex_type_unique_key", "p0") {
             id INT,
             a ARRAY<SMALLINT> NOT NULL COMMENT "",
             m MAP<STRING, INT(11)> NOT NULL COMMENT "",
-            s STRUCT<f1:SMALLINT, f2:INT(11)> NOT NULL COMMENT "",
+            s STRUCT<f1:SMALLINT COMMENT 'sf1', f2:INT(11) COMMENT 'sf2'> NOT NULL COMMENT "",
             an ARRAY<DATE>,
             mn MAP<STRING, INT(11)>,
             sn STRUCT<f1:SMALLINT, f2:INT(11)>