diff --git a/lang/chs/lang_index.php b/lang/chs/lang_index.php
index c0ce3bd3..f1109feb 100644
--- a/lang/chs/lang_index.php
+++ b/lang/chs/lang_index.php
@@ -105,6 +105,8 @@ $lang_index = array
     'top_uploader_toggle_time_range_tab' => '点击切换时间范围',
     'top_uploader_toggle_time_range_recently' => '最近 30 天',
     'top_uploader_toggle_time_range_all' => '全部时间',
+    'clear_shout_box' => '清空群聊区',
+    'sure_to_clear_shout_box' => '确定要清空群聊区吗？',
 
 );
 
diff --git a/lang/cht/lang_index.php b/lang/cht/lang_index.php
index 593a43ba..2d80f9f1 100644
--- a/lang/cht/lang_index.php
+++ b/lang/cht/lang_index.php
@@ -104,6 +104,8 @@ $lang_index = array
     'top_uploader_toggle_time_range_tab' => '點擊切換時間範圍',
     'top_uploader_toggle_time_range_recently' => '最近 30 天',
     'top_uploader_toggle_time_range_all' => '全部時間',
+    'clear_shout_box' => '清空群聊區',
+    'sure_to_clear_shout_box' => '確定要清空群聊區嗎？',
 );
 
 ?>
diff --git a/lang/en/lang_index.php b/lang/en/lang_index.php
index 93a190db..d4dede07 100644
--- a/lang/en/lang_index.php
+++ b/lang/en/lang_index.php
@@ -104,6 +104,8 @@ $lang_index = array
     'top_uploader_toggle_time_range_tab' => 'Click to toggle the time range',
     'top_uploader_toggle_time_range_recently' => 'Last 30 days',
     'top_uploader_toggle_time_range_all' => 'All time',
+    'clear_shout_box' => 'Clear shout box',
+    'sure_to_clear_shout_box' => 'Are you sure you want to clear the shout box?',
 );
 
 ?>
diff --git a/public/ajax.php b/public/ajax.php
index 97115177..8fe245a5 100644
--- a/public/ajax.php
+++ b/public/ajax.php
@@ -123,3 +123,11 @@ function consumeBenefit($params)
     $rep = new \App\Repositories\UserRepository();
     return $rep->consumeBenefit($CURUSER['id'], $params);
 }
+
+function clearShoutBox($params)
+{
+    global $CURUSER;
+    user_can('sbmanage', true);
+    \Nexus\Database\NexusDB::table('shoutbox')->delete();
+    return true;
+}
diff --git a/public/index.php b/public/index.php
index 46130b2f..5f1626d6 100644
--- a/public/index.php
+++ b/public/index.php
@@ -137,10 +137,33 @@ if ($showfunbox_main == "yes" && (!isset($CURUSER) || $CURUSER['showfb'] == "yes
 // ------------- start: shoutbox ------------------//
 if ($showshoutbox_main == "yes") {
 ?>
-<h2><?php echo $lang_index['text_shoutbox'] ?> - <font class="small"><?php echo $lang_index['text_auto_refresh_after']?></font><font class='striking' id="countdown"></font><font class="small"><?php echo $lang_index['text_seconds']?></font></h2>
+    <h2>
+        <?php echo $lang_index['text_shoutbox'] ?> - <font class="small"><?php echo $lang_index['text_auto_refresh_after']?></font>
+        <font class='striking' id="countdown"></font><font class="small"><?php echo $lang_index['text_seconds']?></font>
+        <?php
+        if (user_can('sbmanage')) {
+            echo ' - <font class="small" id="clear-shout-box">[<a class="altlink" href="javascript:;"><b>'.$lang_index['clear_shout_box'].'</b></a>]</font>';
+            $clearShoutBoxJs = <<<JS
+jQuery('#clear-shout-box').on("click", function () {
+    layer.confirm("{$lang_index['sure_to_clear_shout_box']}", {title: "Info", btn: ['Yes', "Cancel"], btnAlign: 'c'}, function (layerIndex) {
+        jQuery.post("ajax.php", {"action": "clearShoutBox"}, function (response) {
+            layer.close(layerIndex)
+            if (response.ret != 0) {
+                layer.alert(response.msg, {title: "Info", btn: ['OK', 'Cancel'], btnAlign: 'c'})
+            } else {
+                document.getElementById('iframe-shout-box').src='shoutbox.php?type=shoutbox';
+            }
+        }, "json")
+    })
+})
+JS;
+            \Nexus\Nexus::js($clearShoutBoxJs, 'footer', false);
+        }
+        ?>
+    </h2>
 <?php
 	print("<table width=\"100%\"><tr><td class=\"text\">\n");
-	print("<iframe src='shoutbox.php?type=shoutbox' width='100%' height='180' frameborder='0' name='sbox' marginwidth='0' marginheight='0'></iframe><br /><br />\n");
+	print("<iframe id='iframe-shout-box' src='shoutbox.php?type=shoutbox' width='100%' height='180' frameborder='0' name='sbox' marginwidth='0' marginheight='0'></iframe><br /><br />\n");
 	print("<form action='shoutbox.php' method='get' target='sbox' name='shbox'>\n");
     print('<div style="display: flex">');
 	print("<label for='shbox_text'>".$lang_index['text_message']."</label><input type='text' name='shbox_text' id='shbox_text' size='100' style='flex-grow: 1; border: 1px solid gray;' />  <input type='submit' id='hbsubmit' class='btn' name='shout' value=\"".$lang_index['sumbit_shout']."\" />");