12U CubeSat platform is the new generation effective 12U high-performance multi-load cubic volume. The satellite flies in the SSO orbit of 500km high, the remote sensing images whose resolution is superior to 1.35m can be obtained. The satellite adopts the concept of cubic satellite standardization and modular d`esign, and features low R&D cost, short development cycle, strong carrying capacity and high reliability. It is suitable for ground observation, new technology verification, scientific detection, biological testing and other fields.