diff --git a/broadcast/index.frm.php b/broadcast/index.frm.php
index 2f38220..08d1462 100644
--- a/broadcast/index.frm.php
+++ b/broadcast/index.frm.php
@@ -73,8 +73,14 @@
                                 </div>
                             </div>
 
-                            <div class="d-grid gap-2 mt-3">
-                                <button type="button" class="btn btn-primary" id="btn-filter">絞り込む</button>
+                            <div class="mt-3 row">
+                                <div class="col gap-2 d-grid">
+                                    <button type="button" class="btn btn-secondary" id="btn-reset">元に戻す</button>
+                                </div>
+
+                                <div class="col gap-2 d-grid">
+                                    <button type="button" class="btn btn-primary" id="btn-filter">絞り込む</button>
+                                </div>
                             </div>
                         </div>
                     </div>
diff --git a/broadcast/script.js b/broadcast/script.js
index 101b14d..a8171ad 100644
--- a/broadcast/script.js
+++ b/broadcast/script.js
@@ -48,6 +48,12 @@ Script
           window.location.href = url;
         });
 
+    const resetFilter = (
+        function ()
+        {
+          window.location.href = '/';
+        });
+
     filterKeyword.addEventListener ('keydown',
         function (e)
         {
@@ -56,6 +62,7 @@ Script
         });
 
     btnFilter.addEventListener ('click', filter);
+    $ ('#btn-reset').on ('click', resetFilter);
   }
 
   static