diff --git a/app/views.py b/app/views.py
index 36aeb9a22..105b8c9e2 100644
--- a/app/views.py
+++ b/app/views.py
@@ -1665,11 +1665,18 @@ def subscribeOrganization(request: UserRequest):
 
     me = get_person_or_org(request.user)
     # orgava_list = [(org, utils.get_user_ava(org, UTYPE_ORG)) for org in org_list]
-    otype_infos = [(
-        otype,
-        list(Organization.objects.activated().filter(otype=otype)
-             .select_related("organization_id")),
-    ) for otype in OrganizationType.objects.all().order_by('-otype_id')]
+    # 获取所有组织类型
+    organization_types = list(OrganizationType.objects.all().order_by('-otype_id'))
+
+    # 强制只执行一次查询，prefetch防止多次查询
+    organizations = list(Organization.objects.activated().select_related('otype').prefetch_related('organization_id'))
+
+    # 获取组织信息
+    otype_infos_dict = {otype: [] for otype in organization_types}
+    for org in organizations:
+        otype_infos_dict[org.otype].append(org)
+    otype_infos = [(otype, otype_infos_dict[otype]) for otype in organization_types]
+
 
     # 获取不订阅列表（数据库里的是不订阅列表）
     if request.user.is_person():
diff --git a/scripts/generate_testdata.py b/scripts/generate_testdata.py
new file mode 100644
index 000000000..612b73f77
--- /dev/null
+++ b/scripts/generate_testdata.py
@@ -0,0 +1,114 @@
+import os
+import sys
+import django
+
+sys.path.append(os.path.abspath('.'))
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'boot.settings')
+django.setup()
+
+from tqdm import tqdm
+from faker import Faker
+import faker as faker
+from app.models import NaturalPerson, User, Organization, OrganizationType
+
+
+# STOP SAVING THIS FILE AUTOMATICALLY
+# As it will mess up the import list
+
+
+USER_COUNT = 200
+ORGANIZATION_COUNT = 100
+ORGANIZATION_TYPE_COUNT = 10
+
+fk = faker.Faker(locale='zh_CN')
+fake = Faker('zh_CN')
+
+
+def create_fake_user_for_orgnizaiton():
+    username = fake.user_name()
+    email = fake.email()
+    password = fake.password()
+    stuid = fake.unique.random_number(digits=8)
+    user = User.objects.create_user(
+        username=stuid, name=username, email=email, password=password, usertype=User.Type.ORG)
+    return user
+
+
+def create_fake_user_for_natural_person():
+    username = fake.user_name()
+    email = fake.email()
+    password = fake.password()
+    stuid = fake.unique.random_number(digits=8)
+    user = User.objects.create_user(
+        username=stuid, name=username, email=email, password=password, usertype=User.Type.STUDENT)
+    return user
+
+
+def create_fake_natural_person():
+    user = create_fake_user_for_natural_person()
+    person = NaturalPerson(
+        person_id=user,
+        name=fake.unique.name(),
+        nickname=fake.first_name(),
+        gender=fake.random_element(elements=[0, 1]),
+        birthday=fake.date_of_birth(),
+        email=fake.email(),
+        telephone=fake.phone_number(),
+        biography=fake.text(max_nb_chars=200),
+        inform_share=fake.boolean(),
+        last_time_login=fake.date_time_this_year(),
+        identity=fake.random_element(elements=[0, 1]),
+        stu_class=fake.random_int(min=1, max=5),
+        stu_major=fake.text(max_nb_chars=25),
+        stu_grade=fake.random_int(min=1, max=5),
+        stu_dorm=fake.random_int(min=100, max=999),
+        status=0,
+        show_nickname=fake.boolean(),
+        show_birthday=fake.boolean(),
+        show_gender=fake.boolean(),
+        show_email=fake.boolean(),
+        show_tel=fake.boolean(),
+        show_major=fake.boolean(),
+        show_dorm=fake.boolean(),
+    )
+    person.save()
+
+
+def create_fake_organization_type(n: int):
+    otype = OrganizationType(
+        otype_id=n,
+        otype_name=fake.unique.company(),
+    )
+    otype.save()
+
+
+def create_fake_organization():
+    user = create_fake_user_for_orgnizaiton()
+    organization_type = OrganizationType.objects.get(
+        otype_id=fake.random_int(min=0, max=ORGANIZATION_TYPE_COUNT-1))
+    organization = Organization(
+        organization_id=user,
+        oname=fake.unique.company(),
+        otype=organization_type,
+    )
+    organization.save()
+
+
+if __name__ == '__main__':
+    print('Generating fake data...')
+    # 生成小组类型
+    for i in tqdm(range(ORGANIZATION_TYPE_COUNT), desc='Creating Organization Types'):
+        create_fake_organization_type(i)
+    actucal_user_count = 0
+    # 生成自然人
+    for _ in tqdm(range(USER_COUNT), desc='Creating Users'):
+        try:
+            create_fake_natural_person()
+            actucal_user_count += 1
+        except Exception as e:
+            pass  # We don't care about duplicate users
+    # 生成小组
+    for _ in tqdm(range(ORGANIZATION_COUNT), desc='Creating Organizations'):
+        create_fake_organization()
+    print('Done!')
+    print(f'Created {actucal_user_count} users, {ORGANIZATION_COUNT} organizations with {ORGANIZATION_TYPE_COUNT} organization types.')