diff --git a/native-engine/datafusion-ext-functions/src/lib.rs b/native-engine/datafusion-ext-functions/src/lib.rs
index db297f297..1d413358c 100644
--- a/native-engine/datafusion-ext-functions/src/lib.rs
+++ b/native-engine/datafusion-ext-functions/src/lib.rs
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::sync::Arc;
+use std::sync::{Arc, OnceLock};
 
 use datafusion::{common::Result, logical_expr::ScalarFunctionImplementation};
 use datafusion_ext_commons::df_unimplemented_err;
@@ -39,51 +39,57 @@ pub fn create_auron_ext_function(
     name: &str,
     spark_partition_id: usize,
 ) -> Result<ScalarFunctionImplementation> {
+    macro_rules! cache {
+        ($func:path) => {{
+            static CELL: OnceLock<ScalarFunctionImplementation> = OnceLock::new();
+            CELL.get_or_init(|| Arc::new($func)).clone()
+        }};
+    }
     // auron ext functions, if used for spark should be start with 'Spark_',
     // if used for flink should be start with 'Flink_',
     // same to other engines.
     Ok(match name {
         "Placeholder" => Arc::new(|_| panic!("placeholder() should never be called")),
-        "Spark_NullIf" => Arc::new(spark_null_if::spark_null_if),
-        "Spark_NullIfZero" => Arc::new(spark_null_if::spark_null_if_zero),
-        "Spark_UnscaledValue" => Arc::new(spark_unscaled_value::spark_unscaled_value),
-        "Spark_MakeDecimal" => Arc::new(spark_make_decimal::spark_make_decimal),
-        "Spark_CheckOverflow" => Arc::new(spark_check_overflow::spark_check_overflow),
-        "Spark_Murmur3Hash" => Arc::new(spark_hash::spark_murmur3_hash),
-        "Spark_XxHash64" => Arc::new(spark_hash::spark_xxhash64),
-        "Spark_Sha224" => Arc::new(spark_crypto::spark_sha224),
-        "Spark_Sha256" => Arc::new(spark_crypto::spark_sha256),
-        "Spark_Sha384" => Arc::new(spark_crypto::spark_sha384),
-        "Spark_Sha512" => Arc::new(spark_crypto::spark_sha512),
-        "Spark_MD5" => Arc::new(spark_crypto::spark_md5),
-        "Spark_GetJsonObject" => Arc::new(spark_get_json_object::spark_get_json_object),
+        "Spark_NullIf" => cache!(spark_null_if::spark_null_if),
+        "Spark_NullIfZero" => cache!(spark_null_if::spark_null_if_zero),
+        "Spark_UnscaledValue" => cache!(spark_unscaled_value::spark_unscaled_value),
+        "Spark_MakeDecimal" => cache!(spark_make_decimal::spark_make_decimal),
+        "Spark_CheckOverflow" => cache!(spark_check_overflow::spark_check_overflow),
+        "Spark_Murmur3Hash" => cache!(spark_hash::spark_murmur3_hash),
+        "Spark_XxHash64" => cache!(spark_hash::spark_xxhash64),
+        "Spark_Sha224" => cache!(spark_crypto::spark_sha224),
+        "Spark_Sha256" => cache!(spark_crypto::spark_sha256),
+        "Spark_Sha384" => cache!(spark_crypto::spark_sha384),
+        "Spark_Sha512" => cache!(spark_crypto::spark_sha512),
+        "Spark_MD5" => cache!(spark_crypto::spark_md5),
+        "Spark_GetJsonObject" => cache!(spark_get_json_object::spark_get_json_object),
         "Spark_GetParsedJsonObject" => {
-            Arc::new(spark_get_json_object::spark_get_parsed_json_object)
+            cache!(spark_get_json_object::spark_get_parsed_json_object)
         }
-        "Spark_ParseJson" => Arc::new(spark_get_json_object::spark_parse_json),
-        "Spark_MakeArray" => Arc::new(spark_make_array::array),
-        "Spark_StringSpace" => Arc::new(spark_strings::string_space),
-        "Spark_StringRepeat" => Arc::new(spark_strings::string_repeat),
-        "Spark_StringSplit" => Arc::new(spark_strings::string_split),
-        "Spark_StringConcat" => Arc::new(spark_strings::string_concat),
-        "Spark_StringConcatWs" => Arc::new(spark_strings::string_concat_ws),
-        "Spark_StringLower" => Arc::new(spark_strings::string_lower),
-        "Spark_StringUpper" => Arc::new(spark_strings::string_upper),
-        "Spark_InitCap" => Arc::new(spark_initcap::string_initcap),
-        "Spark_Year" => Arc::new(spark_dates::spark_year),
-        "Spark_Month" => Arc::new(spark_dates::spark_month),
-        "Spark_Day" => Arc::new(spark_dates::spark_day),
-        "Spark_Quarter" => Arc::new(spark_dates::spark_quarter),
-        "Spark_Hour" => Arc::new(spark_dates::spark_hour),
-        "Spark_Minute" => Arc::new(spark_dates::spark_minute),
-        "Spark_Second" => Arc::new(spark_dates::spark_second),
-        "Spark_BrickhouseArrayUnion" => Arc::new(brickhouse::array_union::array_union),
-        "Spark_Round" => Arc::new(spark_round::spark_round),
-        "Spark_BRound" => Arc::new(spark_bround::spark_bround),
+        "Spark_ParseJson" => cache!(spark_get_json_object::spark_parse_json),
+        "Spark_MakeArray" => cache!(spark_make_array::array),
+        "Spark_StringSpace" => cache!(spark_strings::string_space),
+        "Spark_StringRepeat" => cache!(spark_strings::string_repeat),
+        "Spark_StringSplit" => cache!(spark_strings::string_split),
+        "Spark_StringConcat" => cache!(spark_strings::string_concat),
+        "Spark_StringConcatWs" => cache!(spark_strings::string_concat_ws),
+        "Spark_StringLower" => cache!(spark_strings::string_lower),
+        "Spark_StringUpper" => cache!(spark_strings::string_upper),
+        "Spark_InitCap" => cache!(spark_initcap::string_initcap),
+        "Spark_Year" => cache!(spark_dates::spark_year),
+        "Spark_Month" => cache!(spark_dates::spark_month),
+        "Spark_Day" => cache!(spark_dates::spark_day),
+        "Spark_Quarter" => cache!(spark_dates::spark_quarter),
+        "Spark_Hour" => cache!(spark_dates::spark_hour),
+        "Spark_Minute" => cache!(spark_dates::spark_minute),
+        "Spark_Second" => cache!(spark_dates::spark_second),
+        "Spark_BrickhouseArrayUnion" => cache!(brickhouse::array_union::array_union),
+        "Spark_Round" => cache!(spark_round::spark_round),
+        "Spark_BRound" => cache!(spark_bround::spark_bround),
         "Spark_NormalizeNanAndZero" => {
-            Arc::new(spark_normalize_nan_and_zero::spark_normalize_nan_and_zero)
+            cache!(spark_normalize_nan_and_zero::spark_normalize_nan_and_zero)
         }
-        "Spark_IsNaN" => Arc::new(spark_isnan::spark_isnan),
+        "Spark_IsNaN" => cache!(spark_isnan::spark_isnan),
         _ => df_unimplemented_err!("spark ext function not implemented: {name}")?,
     })
 }