After the implementation of the National Health Insurance program, the medical service market grows quite fast during these years. However, under the impact of separation of dispersion practice and medical care providers changed a lot, Although the total number of hospitals increased, the overall medical service provided by hospitals increased. It reflected the fact that the average size of the hospital increased.Due to the growth of the national income and the increases of the medical knowledge of the general population, personal health was much more valued. Hospitals with better medical facilities and faculties are preferred when people seeks for medical help. The medical service market has reached a era of overall competition.