The development platform of IC production for spacecraft has been established by the Institute of Microelectronics. The radiation hardened LSI memory for spacecraft has been developed. It passed the test on-board in 2008 successfully. The batch production was realized in China. This product meets the standards of spaceflight industry in China. In addition, the radiation hardened power transistors have also been developed successfully. Its properties and resistance to radiativity meet the application standards of long life satellites.