The aim of medical insurance agencies is to maintain basic activities with the lowest cost to people involved,and ensure the balance of medical insurance fund. The hospital can gain the maximum benefit by improving quality of medical record and medical service,optimizing medical management and minimizing unreasonable expense. While exploring the factors affecting the medical insurance management,we should also consider the problems such as medical insurance fund payment,medical service quality and medical charges control,and patient who is identity theft and hospital transference.