According to the data of blog mining recommended by Harbin Institute of Technology, the rate of blog mining recommended by Harbin Institute of Technology is 30%. The school is a 985 university, and it is difficult to apply. The requirements for applying for a doctor's degree in Harbin Institute of Technology are: fresh graduates or those who have obtained a master's degree, those who study abroad must obtain a master's degree certificate, and provide academic certification from the Study Abroad Service Center of the Ministry of Education. Candidates who can only obtain a master's degree certificate and a part-time master's degree must obtain a master's degree before entering the exam. Written recommendation opinions of at least two experts with associate professors and above titles in this discipline and professional field.