diff --git a/info.yaml b/info.yaml
index a76f5c9..ef9e8bf 100644
--- a/info.yaml
+++ b/info.yaml
@@ -1,6 +1,6 @@
 title: "GDM"
 package_name: gommi_downloader_manager
-version: '0.2.35'
+version: '0.2.37'
 description: FlaskFarm 범용 다운로더 큐 - YouTube, 애니24, 링크애니, Anilife 지원
 developer: projectdx
 home: https://gitea.yommi.duckdns.org/projectdx/gommi_downloader_manager
diff --git a/mod_queue.py b/mod_queue.py
index b5fc0a0..5c71d26 100644
--- a/mod_queue.py
+++ b/mod_queue.py
@@ -19,6 +19,7 @@ from framework import F, socketio
 class DownloadStatus(str, Enum):
     PENDING = "pending"
     EXTRACTING = "extracting"  # 메타데이터 추출 중
+    WAITING = "waiting"  # 동시 다운로드 슬롯 대기 중
     DOWNLOADING = "downloading"
     PAUSED = "paused"
     COMPLETED = "completed"
@@ -203,6 +204,33 @@ class ModuleQueue(PluginModuleBase):
                         self.P.logger.error(f'DB Delete Error: {e}')
                 
                 ret['msg'] = '항목이 삭제되었습니다.'
+
+            elif command == 'delete_completed':
+                # 완료된 항목 일괄 삭제 (메모리 + DB)
+                removed_memory = 0
+                with self._queue_lock:
+                    remove_ids = [
+                        task_id
+                        for task_id, task in self._downloads.items()
+                        if task.status == DownloadStatus.COMPLETED
+                    ]
+                    for task_id in remove_ids:
+                        del self._downloads[task_id]
+                    removed_memory = len(remove_ids)
+
+                removed_db = 0
+                try:
+                    from .model import ModelDownloadItem
+                    with F.app.app_context():
+                        removed_db = F.db.session.query(ModelDownloadItem).filter(
+                            ModelDownloadItem.status == DownloadStatus.COMPLETED
+                        ).delete(synchronize_session=False)
+                        F.db.session.commit()
+                except Exception as e:
+                    self.P.logger.error(f'DB Delete Completed Error: {e}')
+
+                ret['msg'] = f'완료 항목 삭제: 메모리 {removed_memory}개, DB {removed_db}개'
+                ret['data'] = {'memory': removed_memory, 'db': removed_db}
             
             # ===== YouTube API for Chrome Extension =====
             
@@ -747,6 +775,8 @@ class DownloadTask:
             ModuleQueue._ensure_concurrency_limit()
             sem = ModuleQueue._concurrency_sem
             if sem is not None:
+                self.status = DownloadStatus.WAITING
+                self._emit_status()
                 while not self._cancelled:
                     if sem.acquire(timeout=0.5):
                         slot_acquired = True
diff --git a/templates/gommi_downloader_manager_queue_list.html b/templates/gommi_downloader_manager_queue_list.html
index f1b927a..8f462dc 100644
--- a/templates/gommi_downloader_manager_queue_list.html
+++ b/templates/gommi_downloader_manager_queue_list.html
@@ -323,6 +323,10 @@
         background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(30, 41, 59, 0.95));
         border-color: rgba(168, 85, 247, 0.25);
     }
+    .dl-card.status-waiting {
+        background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(30, 41, 59, 0.95));
+        border-color: rgba(245, 158, 11, 0.28);
+    }
 
     /* ID & Meta Row */
     .dl-meta {
@@ -440,6 +444,9 @@
     
     .status-downloading { color: var(--accent-primary); }
     .status-downloading .status-dot { background-color: var(--accent-primary); box-shadow: 0 0 8px var(--accent-primary); animation: pulse 1.5s infinite; }
+
+    .status-waiting { color: var(--warning); }
+    .status-waiting .status-dot { background-color: var(--warning); box-shadow: 0 0 8px var(--warning); animation: pulse 1.5s infinite; }
     
     .status-completed { color: var(--success); }
     .status-completed .status-dot { background-color: var(--success); }
@@ -658,6 +665,8 @@
     .dl-status-pill.status-pending .status-dot { background: var(--text-muted); opacity: 0.5; }
     .dl-status-pill.status-extracting { background: rgba(168, 85, 247, 0.2); color: #c084fc; }
     .dl-status-pill.status-extracting .status-dot { background: #c084fc; animation: pulse 1s infinite; }
+    .dl-status-pill.status-waiting { background: rgba(240, 173, 78, 0.2); color: var(--warning); }
+    .dl-status-pill.status-waiting .status-dot { background: var(--warning); animation: pulse 1s infinite; }
     .dl-status-pill.status-error { background: rgba(217, 83, 79, 0.2); color: var(--danger); }
     .dl-status-pill.status-error .status-dot { background: var(--danger); }
     .dl-status-pill.status-cancelled { background: rgba(107, 114, 128, 0.2); color: #9ca3af; }
@@ -882,6 +891,9 @@
             <button type="button" class="btn-premium" onclick="deleteSelected()" id="delete_selected_btn" style="display: none;">
                 <i class="fa fa-trash-o"></i> 선택삭제 (<span id="selected_count">0</span>)
             </button>
+            <button type="button" class="btn-premium" onclick="deleteCompleted()">
+                <i class="fa fa-check"></i> 완료 삭제
+            </button>
             <button type="button" class="btn-premium danger" onclick="resetList()">
                 <i class="fa fa-trash"></i> Reset All
             </button>
@@ -1168,7 +1180,7 @@
                         <i class="fa fa-clock-o"></i> ${startTime !== '-' ? startTime.split(' ')[1] || startTime : '-'}
                     </div>
                     <div class="dl-actions">
-                        <button class="dl-btn cancel" title="취소" onclick="event.stopPropagation(); cancelDownload('${item.id}')" ${status === 'downloading' || status === 'pending' || status === 'paused' || status === 'extracting' ? '' : 'disabled'}>
+                        <button class="dl-btn cancel" title="취소" onclick="event.stopPropagation(); cancelDownload('${item.id}')" ${status === 'downloading' || status === 'pending' || status === 'paused' || status === 'extracting' || status === 'waiting' ? '' : 'disabled'}>
                             <i class="fa fa-stop"></i>
                         </button>
                         <button class="dl-btn delete" title="삭제" onclick="event.stopPropagation(); deleteDownload('${item.id}')">
@@ -1245,6 +1257,29 @@
         });
     }
 
+    function deleteCompleted() {
+        if (!confirm('완료된 항목만 큐에서 삭제하시겠습니까?')) return;
+        $.ajax({
+            url: '/{{ arg["package_name"] }}/ajax/{{ arg["module_name"] }}/delete_completed',
+            type: 'POST',
+            data: {},
+            dataType: 'json',
+            success: function(ret) {
+                if (ret.ret === 'success') {
+                    const mem = ret.data?.memory ?? 0;
+                    const db = ret.data?.db ?? 0;
+                    $.notify(`<strong>완료 항목 삭제 완료 (메모리 ${mem}, DB ${db})</strong>`, {type: 'success'});
+                } else {
+                    $.notify('<strong>완료 항목 삭제 실패</strong>', {type: 'warning'});
+                }
+                refreshList(false);
+            },
+            error: function() {
+                $.notify('<strong>완료 항목 삭제 실패</strong>', {type: 'warning'});
+            }
+        });
+    }
+
     function deleteDownload(id) {
         $.ajax({
             url: '/{{ arg["package_name"] }}/ajax/{{ arg["module_name"] }}/delete',