diff --git a/services/etc/param/ohos.para.size b/services/etc/param/ohos.para.size
index b4a4c62521658f9c3af7c53644ca88dcd844ae8a..05180a5dbce45e9fcd91a0779284706fa5f9e10e 100755
--- a/services/etc/param/ohos.para.size
+++ b/services/etc/param/ohos.para.size
@@ -44,7 +44,7 @@ developtools_hdc_auth_param = 4096
 time_param = 2048
 arkcompiler_param = 2048
 useriam_fwkready_param = 2048
-custom_param = 2048
+custom_param = 4096
 persist_audio_param = 4096
 update_updater_param = 4096
 bms_param = 2048
diff --git a/test/unittest/param/client_unittest.cpp b/test/unittest/param/client_unittest.cpp
index 2b9959d46d156e85aef69e91cfcbe67bf633f5a9..52810840d88eb9c53b5479cd870d51baa09a9d32 100644
--- a/test/unittest/param/client_unittest.cpp
+++ b/test/unittest/param/client_unittest.cpp
@@ -271,23 +271,4 @@ HWTEST_F(ClientUnitTest, Init_TestClient_006, TestSize.Level0)
 #endif
 }
 
-#ifndef OHOS_LITE
-HWTEST_F(ClientUnitTest, Init_TestClient_007, TestSize.Level0)
-{
-    char key1[] = "const.test.for_update_test";
-    char key2[] = "persist.test.for_update_test";
-    char value1[] = "initSet";
-    char value2[] = "initUpdate";
-
-    int ret = SystemUpdateConstParam(key1, value2);
-    EXPECT_EQ(ret, PARAM_CODE_INVALID_NAME);
-    ret = SystemWriteParam(key1, value1);
-    EXPECT_EQ(ret, 0);
-    ret = SystemUpdateConstParam(key1, value2);
-    EXPECT_EQ(ret, 0);
-    ret = SystemUpdateConstParam(key2, value2);
-    EXPECT_EQ(ret, PARAM_CODE_INVALID_NAME);
-}
-#endif
-
 }  // namespace init_ut
\ No newline at end of file