Abstract: There are a little more working parameters and complex factory inspection of cardiac pacemaker, for this reason, the efficiency of manual testing is very low, which becomes the bottleneck of pacemaker batch production. Therefore, how to improve the detection efficiency of cardiac pacemaker becomes key point of this paper. C# programming language is used in the user-control software of this system, the user-control software of this system control the cardiac pacemaker through the setting device and the testing device to set, query and test, and to store the measurement results into the database(SQL 2000). The test results show that the system functions is well, the user interface is friendly, and the fault tolerance mechanism is strong, the efficiency of the factory inspection also has been improved.