diff --git a/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala b/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala
index 1d0f13055f6a..868e42a94a5a 100644
--- a/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala
+++ b/backends-clickhouse/src/main/scala/org/apache/gluten/utils/CHExpressionUtil.scala
@@ -205,7 +205,6 @@ object CHExpressionUtil {
     URL_ENCODE -> DefaultValidator(),
     FORMAT_STRING -> FormatStringValidator(),
     SKEWNESS -> DefaultValidator(),
-    SOUNDEX -> DefaultValidator(),
     MAKE_YM_INTERVAL -> DefaultValidator(),
     MAP_ZIP_WITH -> DefaultValidator(),
     ZIP_WITH -> DefaultValidator(),
diff --git a/backends-clickhouse/src/test/scala/org/apache/gluten/execution/tpch/GlutenClickHouseTPCHSaltNullParquetSuite.scala b/backends-clickhouse/src/test/scala/org/apache/gluten/execution/tpch/GlutenClickHouseTPCHSaltNullParquetSuite.scala
index 1db37e00f946..49697872e8ae 100644
--- a/backends-clickhouse/src/test/scala/org/apache/gluten/execution/tpch/GlutenClickHouseTPCHSaltNullParquetSuite.scala
+++ b/backends-clickhouse/src/test/scala/org/apache/gluten/execution/tpch/GlutenClickHouseTPCHSaltNullParquetSuite.scala
@@ -2936,5 +2936,11 @@ class GlutenClickHouseTPCHSaltNullParquetSuite extends GlutenClickHouseTPCHAbstr
         checkBHJWithIsNullAwareAntiJoin(df)
       })
   }
+
+  test("soundex") {
+    runQueryAndCompare("select soundex(c_mktsegment) from customer limit 50") {
+      checkGlutenOperatorMatch[ProjectExecTransformer]
+    }
+  }
 }
 // scalastyle:on line.size.limit
diff --git a/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp b/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp
index ae654bd296ef..f7aea3157c6e 100644
--- a/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp
+++ b/cpp-ch/local-engine/Parser/scalar_function_parser/CommonScalarFunctionParser.cpp
@@ -134,6 +134,7 @@ REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Uuid, uuid, generateUUIDv4);
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Levenshtein, levenshtein, editDistanceUTF8);
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(FormatString, format_string, printf);
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Concat, concat, concat);
+REGISTER_COMMON_SCALAR_FUNCTION_PARSER(SoundEx, soundex, soundex);
 
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Crc32, crc32, CRC32);
 REGISTER_COMMON_SCALAR_FUNCTION_PARSER(Murmur3Hash, murmur3hash, sparkMurmurHash3_32);
diff --git a/gluten-ut/spark32/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala b/gluten-ut/spark32/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
index fb9ce5afb773..6d5083dbe295 100644
--- a/gluten-ut/spark32/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
+++ b/gluten-ut/spark32/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
@@ -908,6 +908,9 @@ class ClickHouseTestSettings extends BackendTestSettings {
     .exclude("ParseUrl")
     .exclude("SPARK-33468: ParseUrl in ANSI mode should fail if input string is not a valid url")
     .exclude("FORMAT") // refer https://github.com/apache/incubator-gluten/issues/6765
+    .exclude(
+      "soundex unit test"
+    ) // CH and spark returns different results when input non-ASCII characters
     .excludeGlutenTest("SPARK-40213: ascii for Latin-1 Supplement characters")
   enableSuite[GlutenTryCastSuite]
     .exclude("null cast")
diff --git a/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala b/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
index 705f5beaf3dc..de979ac27427 100644
--- a/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
+++ b/gluten-ut/spark33/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
@@ -904,6 +904,9 @@ class ClickHouseTestSettings extends BackendTestSettings {
     .exclude("ParseUrl")
     .exclude("SPARK-33468: ParseUrl in ANSI mode should fail if input string is not a valid url")
     .exclude("FORMAT") // refer https://github.com/apache/incubator-gluten/issues/6765
+    .exclude(
+      "soundex unit test"
+    ) // CH and spark returns different results when input non-ASCII characters
   enableSuite[GlutenTryCastSuite]
     .exclude("null cast")
     .exclude("cast string to date")
diff --git a/gluten-ut/spark34/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala b/gluten-ut/spark34/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
index 5f30dea84d39..89a44c602ecc 100644
--- a/gluten-ut/spark34/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
+++ b/gluten-ut/spark34/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
@@ -808,6 +808,9 @@ class ClickHouseTestSettings extends BackendTestSettings {
     .exclude("ParseUrl")
     .exclude("SPARK-33468: ParseUrl in ANSI mode should fail if input string is not a valid url")
     .exclude("FORMAT") // refer https://github.com/apache/incubator-gluten/issues/6765
+    .exclude(
+      "soundex unit test"
+    ) // CH and spark returns different results when input non-ASCII characters
   enableSuite[GlutenDataSourceV2DataFrameSessionCatalogSuite]
   enableSuite[GlutenDataSourceV2SQLSessionCatalogSuite]
   enableSuite[GlutenDataSourceV2SQLSuiteV1Filter]
diff --git a/gluten-ut/spark35/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala b/gluten-ut/spark35/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
index 6a2241f7e4dd..388036c558a4 100644
--- a/gluten-ut/spark35/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
+++ b/gluten-ut/spark35/src/test/scala/org/apache/gluten/utils/clickhouse/ClickHouseTestSettings.scala
@@ -808,6 +808,9 @@ class ClickHouseTestSettings extends BackendTestSettings {
     .exclude("ParseUrl")
     .exclude("SPARK-33468: ParseUrl in ANSI mode should fail if input string is not a valid url")
     .exclude("FORMAT") // refer https://github.com/apache/incubator-gluten/issues/6765
+    .exclude(
+      "soundex unit test"
+    ) // CH and spark returns different results when input non-ASCII characters
   enableSuite[GlutenDataSourceV2DataFrameSessionCatalogSuite]
   enableSuite[GlutenDataSourceV2SQLSessionCatalogSuite]
   enableSuite[GlutenDataSourceV2SQLSuiteV1Filter]