After being arrested and detained by the police station in Shanghai, will the police station find information when renting a house or opening a hotel in other places?

According to the relevant information, it has no effect on the hotel alone. Please feel free to stay, but you may be checked by the local police. The hotel's check-in data will be accessed to the local police platform in real time, but generally speaking, the hotel is just a data input terminal. In layman's terms, the hotel only reports to the platform that someone is staying at a certain time, and will not display the information that this person has filed with the public security organ, including criminal records and other information.