diff --git a/interfaces/inner_api/code_sign_utils/BUILD.gn b/interfaces/inner_api/code_sign_utils/BUILD.gn
index 2388b49d18515b96f4cdb2c586a98d36b483f04d..1ec18b50206745015d872d9ae6b1f69dacf00c4b 100644
--- a/interfaces/inner_api/code_sign_utils/BUILD.gn
+++ b/interfaces/inner_api/code_sign_utils/BUILD.gn
@@ -27,6 +27,7 @@ ohos_shared_library("libcode_sign_utils") {
   branch_protector_ret = "pac_ret"
   sources = [
     "${code_signature_root_dir}/utils/src/code_sign_block.cpp",
+    "${code_signature_root_dir}/utils/src/data_size_report_adapter.cpp",
     "${code_signature_root_dir}/utils/src/file_helper.cpp",
     "src/code_sign_enable_multi_task.cpp",
     "src/code_sign_helper.cpp",
diff --git a/interfaces/inner_api/code_sign_utils/src/code_sign_utils.cpp b/interfaces/inner_api/code_sign_utils/src/code_sign_utils.cpp
index a9fa7aa5814924e0794a8ac6b31cd7cede5d907e..45a318d44cf0319c232f0343b389fc974fd67865 100644
--- a/interfaces/inner_api/code_sign_utils/src/code_sign_utils.cpp
+++ b/interfaces/inner_api/code_sign_utils/src/code_sign_utils.cpp
@@ -40,6 +40,7 @@
 #include "stat_utils.h"
 #include "signer_info.h"
 #include "rust_interface.h"
+#include "data_size_report_adapter.h"
 
 namespace OHOS {
 namespace Security {
@@ -259,6 +260,7 @@ int32_t CodeSignUtils::EnableKeyInProfile(const std::string &bundleName, const B
 {
     int ret = EnableKeyInProfileByRust(bundleName.c_str(), profileBuffer.GetBuffer(), profileBuffer.GetSize());
     if (ret == CS_SUCCESS) {
+        ReportUserDataSize();
         return ret;
     }
     LOG_ERROR("Enable key in profile failed. ret = %{public}d", ret);
diff --git a/utils/include/data_size_report_adapter.h b/utils/include/data_size_report_adapter.h
new file mode 100644
index 0000000000000000000000000000000000000000..67223a658e2ad57fe08753372d97af5e580d8025
--- /dev/null
+++ b/utils/include/data_size_report_adapter.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATA_SIZE_REPORT_ADAPTER_H
+#define DATA_SIZE_REPORT_ADAPTER_H
+
+#include <string>
+#include "log.h"
+
+namespace OHOS {
+namespace Security {
+namespace CodeSign {
+
+void ReportUserDataSize();
+
+} // namespace CodeSign
+} // namespace Security
+} // OHOS
+#endif // DATA_SIZE_REPORT_ADAPTER_H
diff --git a/utils/src/data_size_report_adapter.cpp b/utils/src/data_size_report_adapter.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2c2bcbfca7d915b98c1505460983d3345dae1784
--- /dev/null
+++ b/utils/src/data_size_report_adapter.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "data_size_report_adapter.h"
+#include "hisysevent.h"
+
+#include <sstream>
+#include <thread>
+#include <vector>
+#include <sys/statfs.h>
+#include <sys/stat.h>
+#include "directory_ex.h"
+
+namespace OHOS {
+namespace Security {
+namespace CodeSign {
+namespace {
+using namespace OHOS::HiviewDFX;
+
+static const std::string CODE_SIGN_NAME = "code_signature";
+static const std::string SYS_EL1_CODE_SIGN_DIR = "/data/service/el1/public/profiles";
+static const std::string USER_DATA_DIR = "/data";
+static const double UNITS = 1024.0;
+}
+
+double GetPartitionRemainSize(const std::string& path)
+{
+    struct statfs stat;
+    if (statfs(path.c_str(), &stat) != 0) {
+        LOG_ERROR("Failed to get %{public}s's remaining size.", path.c_str());
+        return 0;
+    }
+
+    /* change B to MB */
+    return (static_cast<double>(stat.f_bfree) * static_cast<double>(stat.f_bsize)) / (UNITS * UNITS);
+}
+
+void ReportTask()
+{
+    int ret = HiSysEventWrite(HiviewDFX::HiSysEvent::Domain::FILEMANAGEMENT, "USER_DATA_SIZE",
+        HiviewDFX::HiSysEvent::EventType::STATISTIC, "COMPONENT_NAME", CODE_SIGN_NAME, "PARTITION_NAME",
+        USER_DATA_DIR, "REMAIN_PARTITION_SIZE", GetPartitionRemainSize(USER_DATA_DIR),
+        "FILE_OR_FOLDER_PATH", SYS_EL1_CODE_SIGN_DIR, "FILE_OR_FOLDER_SIZE", GetFolderSize(SYS_EL1_CODE_SIGN_DIR));
+    if (ret != 0) {
+        LOG_ERROR("Hisysevent report data size failed!");
+    }
+}
+
+void ReportUserDataSize()
+{
+    std::thread task(ReportTask);
+    task.join();
+}
+} // namespace CodeSign
+} // namespace Security
+} // OHOS
\ No newline at end of file