Hospitals that provide medical and health services across regions, provinces and cities and face the whole country are medical prevention technology centers with comprehensive medical treatment, teaching and scientific research capabilities. Its main function is to provide medical services for specialties (including special specialties), solve critical and difficult diseases, accept secondary referral, and provide professional technical guidance and personnel training for lower-level hospitals; Complete the teaching of cultivating all kinds of senior medical talents and undertake the tasks of scientific research projects at or above the provincial level; Participate in and guide primary and secondary prevention work.
In China, Grade Three A is the highest grade at present (although there is Grade Three A, this grade has never been used for evaluation). Generally speaking, the top hospitals in China are affiliated hospitals of key famous universities and provincial people's hospitals, as well as affiliated hospitals of PLA Military Medical University and general hospitals of major military regions. Only these hospitals can be rated as top three hospitals.