Abstract: Medical insurance fee control can ensure the stable expenditure of national medical insurance fund, but the function and performance of medical insurance fee control system can not meet the requirements of users. This paper designs a medical insurance fee control system based on data mining. Using the RF transmitter, the medical insurance expense data synchronizer is designed. Combined with the medical insurance expense data extraction circuit and medical insurance expense controller, the hardware design of the system is completed. In the software design, according to the attributes of medical insurance expense data, the gain value of medical insurance expense information is calculated, and the characteristics of medical insurance expense data are extracted by using data mining algorithm. Through the classification of outpatient medical insurance expenses, the medical insurance expense control algorithm is designed to realize the control of medical insurance expenses. The test results show that the medical insurance expense control function of the system meets the requirements of users, and can control the proportion of illegal amount and memory occupancy within 17% and 20% respectively, which greatly improves the performance of the system.

Key words: data mining, medical insurance expenses, cost control, data synchronization, RF transmitter, amount of violation