How long can the hotel public security system check the ID card registration?

Legal analysis: three to six months. If it involves criminal cases, it will be preserved for a long time. The public security is connected with the information of the hotel, and the data is kept in the hotel. As long as the hotel has data, the police can find it. The specific storage time depends on how long the hotel wants to keep it. Generally speaking, the hotel's opening records are kept for six months to two years.

Legal basis: Article 13 of the Law of the People's Republic of China on Resident Identity Cards. If citizens need to prove their identity in related activities, they have the right to use their resident identity cards to prove their identity, and the relevant units and their staff members shall not refuse.