Abstract: The gyro-navigation device online test is an important difficult part of gyro-navigation device service. This article maintains using non-contact test by sound and temperature signal testing in gyro-navigation device online multi non-contact test system. In this way, this method did not interfere with the work of the gyro-navigation device, and was an excellent way to make the online gyro-navigation test becoming true. Based on this, the article constructed the basic structure of the system and the functional design of test system, and showed the plan of the hardware and software in detail. The system was put into practice and ran well.