diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/ListPartitionItem.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/ListPartitionItem.java
index d4e781322e186a..0e5cacfcdec5f2 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/ListPartitionItem.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/ListPartitionItem.java
@@ -200,10 +200,7 @@ public String toString() {
 
     public String toSql() {
         StringBuilder sb = new StringBuilder();
-        int size = partitionKeys.size();
-        if (size > 1) {
-            sb.append("(");
-        }
+        sb.append("(");
 
         int i = 0;
         for (PartitionKey partitionKey : partitionKeys) {
@@ -214,9 +211,7 @@ public String toSql() {
             i++;
         }
 
-        if (size > 1) {
-            sb.append(")");
-        }
+        sb.append(")");
 
         return sb.toString();
     }
diff --git a/fe/fe-core/src/test/java/org/apache/doris/catalog/ListPartitionInfoTest.java b/fe/fe-core/src/test/java/org/apache/doris/catalog/ListPartitionInfoTest.java
index fe5f2fa0070830..2caee8e7b68956 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/catalog/ListPartitionInfoTest.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/catalog/ListPartitionInfoTest.java
@@ -248,4 +248,61 @@ public void testMultiAutotoSql() throws AnalysisException, DdlException {
         String expected = "AUTO PARTITION BY LIST (`k1`, `k2`)";
         Assert.assertTrue("got: " + sql + ", should have: " + expected, sql.contains(expected));
     }
+
+    @Test
+    public void testListPartitionNullMax() throws AnalysisException, DdlException {
+        PartitionItem partitionItem = null;
+        Column k1 = new Column("k1", new ScalarType(PrimitiveType.INT), true, null, "", "");
+        Column k2 = new Column("k2", new ScalarType(PrimitiveType.INT), true, null, "", "");
+        partitionColumns.add(k1);
+        partitionColumns.add(k2);
+        partitionInfo = new ListPartitionInfo(partitionColumns);
+
+        List<List<PartitionValue>> inValues = new ArrayList<>();
+        inValues.add(Lists.newArrayList(new PartitionValue("", true), PartitionValue.MAX_VALUE));
+        SinglePartitionDesc singlePartitionDesc = new SinglePartitionDesc(false, "p1",
+                PartitionKeyDesc.createIn(inValues), null);
+        singlePartitionDesc.analyze(2, null);
+        partitionItem = partitionInfo.handleNewSinglePartitionDesc(singlePartitionDesc, 20000L, false);
+
+        Assert.assertEquals("((NULL, MAXVALUE))", ((ListPartitionItem) partitionItem).toSql());
+
+        inValues = new ArrayList<>();
+        inValues.add(Lists.newArrayList(new PartitionValue("", true), new PartitionValue("", true)));
+        singlePartitionDesc = new SinglePartitionDesc(false, "p2",
+        PartitionKeyDesc.createIn(inValues), null);
+        singlePartitionDesc.analyze(2, null);
+        partitionItem = partitionInfo.handleNewSinglePartitionDesc(singlePartitionDesc, 20000L, false);
+
+        Assert.assertEquals("((NULL, NULL))", ((ListPartitionItem) partitionItem).toSql());
+
+        inValues = new ArrayList<>();
+        inValues.add(Lists.newArrayList(PartitionValue.MAX_VALUE, new PartitionValue("", true)));
+        singlePartitionDesc = new SinglePartitionDesc(false, "p3",
+        PartitionKeyDesc.createIn(inValues), null);
+        singlePartitionDesc.analyze(2, null);
+        partitionItem = partitionInfo.handleNewSinglePartitionDesc(singlePartitionDesc, 20000L, false);
+
+        Assert.assertEquals("((MAXVALUE, NULL))", ((ListPartitionItem) partitionItem).toSql());
+
+        inValues = new ArrayList<>();
+        inValues.add(Lists.newArrayList(PartitionValue.MAX_VALUE, PartitionValue.MAX_VALUE));
+        singlePartitionDesc = new SinglePartitionDesc(false, "p4",
+        PartitionKeyDesc.createIn(inValues), null);
+        singlePartitionDesc.analyze(2, null);
+        partitionItem = partitionInfo.handleNewSinglePartitionDesc(singlePartitionDesc, 20000L, false);
+
+        Assert.assertEquals("((MAXVALUE, MAXVALUE))", ((ListPartitionItem) partitionItem).toSql());
+
+        inValues = new ArrayList<>();
+        inValues.add(Lists.newArrayList(new PartitionValue("", true), new PartitionValue("", true)));
+        inValues.add(Lists.newArrayList(PartitionValue.MAX_VALUE, new PartitionValue("", true)));
+        inValues.add(Lists.newArrayList(new PartitionValue("", true), PartitionValue.MAX_VALUE));
+        singlePartitionDesc = new SinglePartitionDesc(false, "p5",
+        PartitionKeyDesc.createIn(inValues), null);
+        singlePartitionDesc.analyze(2, null);
+        partitionItem = partitionInfo.handleNewSinglePartitionDesc(singlePartitionDesc, 20000L, false);
+
+        Assert.assertEquals("((NULL, NULL),(MAXVALUE, NULL),(NULL, MAXVALUE))", ((ListPartitionItem) partitionItem).toSql());
+    }
 }