Whether it is necessary to bring a household registration book to school may vary by region and school. Generally speaking, freshmen need to provide some basic identity certificates and related documents to complete the registration of student status and student information. Among them, the hukou book may be an effective way to prove identity.

Household register usually contains personal basic identity information, family members' relationships, etc. It has certain reference value for schools to understand students' background and family situation. It can also be used to solve some administrative affairs, such as handling student ID cards and registering accommodation.

However, different schools may have different requirements for the documents required for admission. Some schools may require household registration books, while others may accept other identification documents, such as ID cards or passports. Therefore, I suggest that you contact the university you apply for before entering the school to find out their specific admission requirements and ask what documents you need to bring as proof of identity verification and registration. This will ensure that you are fully prepared when you register for the school and successfully complete the admission procedures.