Integrated Module Avionics(IMA) is the development direction of the avionic systemand its technical standards have great significance on guiding the development of avionic systems onboard new types of military and civil aircrafts.Some concepts and technologies of it have been used in the avionic systems of RafaleF-22F-35A380 and B787.In this paperthe technical standards of Allied Standard Avionics Architecture Council (ASAAC) on system architecturesystem softwarecommunication/network, common functional module and packaging, and the relevant standard of ARINC are discussed.