Abstract: Abstract：As a key component of phased array antenna, T/R module has the characteristics of complicated structure, miniaturization and high integration. The reliability of T/R module is the main factor influencing the phased array antenna’s life. Domestic spaceborne millimeterwave phased array antenna lacks of longterm onorbit working experience. Meanwhile there is no T/R module accelerated life testing method. So it is necessary to research into the testing method of T/R module accelerated life for the reliability design and life evaluation of phased array antenna. The principle and failure mechanism of T/R module are presented. Combined with the status of accelerated life testing, the flow of T/R module accelerated life testing is suggested. The activation energy testing method, reliability prediction testing method and multiplestress testing method are compared. The testing flow, testing method and determination of parameters can guide for the accelerated life testing of spaceborne millimeterwave phased array antenna T/R module.

Key words: Keywords：T/R module, accelerated life testing, testing method