Before Harbin Institute of Technology chooses a major, it is necessary to carefully understand the professional situation through various channels:

1. Consult the latest edition of the national professional catalogue of colleges and universities, which are generally collected by various libraries. The book will introduce the detailed professional catalogue of each school, the direction of each major, the training objectives and main courses offered, the distribution after graduation, and the requirements for students applying for the exam.

2. Direct or indirect contact with people with this knowledge.

3. Consult the enrollment brochures compiled and distributed by colleges and universities. Generally speaking, there are more detailed professional introductions in brochures, including graduation distribution direction.

4. Send and read newspapers and periodicals by mail.