Each university in Hong Kong has its own student ID card, which is usually created for new students on the first day of enrollment by taking electronic photos, quickly producing the student ID, and then issuing it to the new students, followed by activating the student ID and password.

The student ID card serves different functions at various universities in Hong Kong, but it is a proof of student identity and needs to be kept safe.

Generally speaking, the school's student ID is an electronic card, and the school uses the student ID as a pass for various facilities, such as libraries, computer rooms, etc. Those who do not hold a student ID, even if they are students, cannot use these facilities. Unlike schools in mainland China, Hong Kong universities are very strict about student ID checks. There was once a student who forgot their student ID in the dormitory and was not allowed to attend a computer class.

Some schools, such as CityU, set the student ID as an electronic door card for entering the Hall (dormitory), with different student IDs corresponding to different Halls, and entry is not allowed at will.

In addition, the student ID can also enjoy some discounts when consuming in Hong Kong (the benefits vary by school).