diff --git a/apps/resm/tasks.py b/apps/resm/tasks.py
index 1ebfe10..53a89de 100644
--- a/apps/resm/tasks.py
+++ b/apps/resm/tasks.py
@@ -25,6 +25,7 @@ def get_paper_meta_from_openalex(publication_year:int, search_key:str, end_year:
     cache_cursor = cache.get(cache_key, "*")
     pager = Works().filter(
         publication_year=publication_year,
+        has_doi=True,
         type="article"  # 将 type 移到 filter 中
     ).search(search_key).select([
         "id", "doi", "title", "publication_date", 
@@ -63,8 +64,13 @@ def get_paper_meta_from_openalex(publication_year:int, search_key:str, end_year:
 
 
 ELSEVIER_APIKEY = 'aa8868cac9e27d6153ab0a0acd7b50bf'
+def is_elsevier_abstract_task_enabled():
+    return cache.get("elsevier_abstract_task_enabled", True)
+
 @shared_task(base=CustomTask)
 def get_abstract_from_elsevier(publication_year: int = None, number_of_task:int = 100):
+    if not is_elsevier_abstract_task_enabled():
+        return "stoped"
     qs = Paper.objects.filter(has_abstract=False)
     if publication_year is not None:
         qs = qs.filter(publication_year=publication_year)
@@ -82,6 +88,8 @@ def get_abstract_from_elsevier(publication_year: int = None, number_of_task:int
     err_msg = ""
     with requests.Session() as req:
         for paper in qs[:number_of_task]:
+            if not is_elsevier_abstract_task_enabled():
+                break
             try:
                 res = req.get(
                     f"https://api.elsevier.com/content/article/doi/{paper.doi}",
@@ -143,13 +151,13 @@ def get_abstract_from_elsevier(publication_year: int = None, number_of_task:int
             elif res.status_code == 404:
                 paper.fail_reason = "elsevier_doi_not_found"
                 paper.save(update_fields=["fail_reason"])
-    
-    current_app.send_task(
-        "apps.resm.tasks.get_abstract_from_elsevier",
-        kwargs={
-            "publication_year": publication_year,
-            "number_of_task": number_of_task,
-        },
-        countdown=5,
-    )
+    if is_elsevier_abstract_task_enabled():
+        current_app.send_task(
+            "apps.resm.tasks.get_abstract_from_elsevier",
+            kwargs={
+                "publication_year": publication_year,
+                "number_of_task": number_of_task,
+            },
+            countdown=5,
+        )
     return f'{err_msg}, remaining {qs.count()} papers'
\ No newline at end of file