Analysis on Regional Guidance Mechanism for Promoting Prevention Based on Combination of Traditional Chinese Medicine and Western Medicine

China’s health strategy puts forward the requirement of giving priority to prevention and paying equal attention to Traditional Chinese Medicine (TCM) and Western Medicine. Government should guide the preventive actions with combination of TCM and Western Medicine at regional level. An evolutionary game model for regional strategy pattern of TCM and Western Medicine has been constructed, and the solution of the model has been numerically simulated and analyzed. The enlightenment of analysis conclusions mainly includes three aspects: prevention guidance mechanism that does not weaken therapeutic function of medical service system can be established; in current prevention system dominated by Western Medicine, the cost required to promote TCM prevention is affordable; guidance mechanism cannot avoid polarization between preventive actions of TCM and Western medicine in the long run, but it is possible to promote prevention of them at the same time at initial stage of mechanism implementation. Policy suggestions have been put forward on judgment method of service structure changes of TCM and Western Medicine and on effective influence to regional incomes of TCM and Western Medicine.