diff --git a/app/Helpers/ListQueryHelper.php b/app/Helpers/ListQueryHelper.php
new file mode 100644
index 0000000..ebce7cf
--- /dev/null
+++ b/app/Helpers/ListQueryHelper.php
@@ -0,0 +1,34 @@
+<?php
+
+if (! function_exists('keepUserListQuery')) {
+    /**
+     * 利用者一覧：検索条件保持用
+     *
+     * @param array $override 追加・上書きしたいパラメータ
+     * @return array
+     */
+    function keepUserListQuery(array $override = []): array
+    {
+        return array_merge(
+            request()->only([
+                'user_id',
+                'user_categoryid',
+                'user_tag_serial',
+                'quit_flag',
+                'user_category1',
+                'user_category2',
+                'user_category3',
+                'user_phonetic',
+                'phone',
+                'email',
+                'tag_qr_flag',
+                'quit_from',
+                'quit_to',
+                'sort',
+                'dir',
+                'page',
+            ]),
+            $override
+        );
+    }
+}