如果您不怕添加依赖项： django-select2 具有链接选择的实现，可以使用django表单API对其进行配置。他们的文档中的示例：

If you are not afraid of adding dependencies: django-select2 has an implementation of chained selects, which can be configured using the django form API. Example from their docs:

class AddressForm(forms.Form):
    country = forms.ModelChoiceField(
        queryset=Country.objects.all(),
        label=u"Country",
        widget=ModelSelect2Widget(
            model=Country,
            search_fields=['name__icontains'],
        )
    )

    city = forms.ModelChoiceField(
        queryset=City.objects.all(),
        label=u"City",
        widget=ModelSelect2Widget(
            model=City,
            search_fields=['name__icontains'],
            dependent_fields={'country': 'country'},
            max_results=500,
        )
    )