Can I stay in a hotel with my passport in Qinhuangdao?

Foreign countries can, but not at home.

According to the requirements of the public security department, all guests entering the hotel need to bring their ID cards to the front desk to register. Usually, most hotels in China will accept guests who can provide their own valid ID cards. Unless there are express provisions in individual hotels.

Passport is a legal document issued by a country to prove the nationality and identity of its citizens when they enter and leave the country and travel or stay abroad. The word Passport means port pass in English. In other words, a passport is a passport for citizens to pass through international ports in various countries. Therefore, some countries in the world usually issue passes instead of passports.