Abstract：Microwave circuit is evolving towards the direction of high performance，high reliability， multi-function and miniaturization. In order to adapt the developing direction，a kind of four-channel X-band amplifier module with the function of limiter was introduced. The module was implemented by microwave hybrid integrated process and micro-assembly technology. The design method of miniaturization was summarized. Test results showed that the size of the module was 52 mm×56 mm×14 mm and its circuit performance was up to the specifications.