pip install django-adminlte-ui

# settings.py

INSTALLED_APPS = [
    'adminlteui',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.sites',
    'django.contrib.sitemaps',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # custom menu base on treebeard
    'treebeard',
    ...
]

python manage.py migrate django_admin_settings