In order to monitor elevator running state, achieve realtime alarm when it is failure, designed a elevator health system based on realtime monitoring information terminal. The entire system based on ARM core, through multisensor information fusion and fault reasoning strategy diagnosis elevator health index, autonomous time or realtime upload data to the user information terminal systems for different conditions, implement all aspects of the health status of the elevator open. Meanwhile, in order to improve the reliability of the monitoring system, we propose a sensor selftest mechanism for determining whether the sensor itself fails, avoid the system false positives omission by the sensor failure. At present, the system has been running in a community of Fuzhou, proved stable and reliable to use.