01 / STORY
Answer
Shanghai’s official immigration/accommodation guidance states that visitors staying outside hotels must register accommodation with local public security within 24 hours of check-in. Hotels usually handle registration for you; private stays often do not.
Ask your host how registration is done locally (police station or online channels where available). Bring passport and the address details. Rules and channels can vary by city — confirm current local instructions.
Failing to register can create problems later. This is preparation guidance, not legal advice for a specific case.