Definition, cause of disease, diagnose means, investigation of epidemics, and modernized of Traditional Chinese Medicine diagnosis of subhealthy had been documents reviewed and concluded in this paper. In tendency of modern developent of herbalist doctor diagnosis and treatment, it is necessary to absorb modem medical research finding, make a point of develop adapt to oneself s developing science and technology diagnose apparatus. To join macroscopic and microscopic of herbalist doctor dialectical theory rule, dialectical combination contention illness, normalize diagnose standard, so as to enhance diagnose level of Traditional Chinese Medicine. Prevention ideas and healthy standard's of Traditional Chinese Medicine all involve subhealthy content of different gradations. It is necessary to keep under the characteristic of Traditional Chinese Medicine, to look for modern direction of Traditional Chinese Medicine.