Optical technology is widely applied in the China Lunar Exploration Program (CLEP) and the first China Martian exploration project: More than half of the scientific payloads were optical remote-sensing payload, and it was also widely used in the engineering areas including autonomous navigation, TT&C, monitoring, rendezvous and docking. In this paper, accomplished CLEP missions, on-going Chinese lunar and Martian projects and especially main achievements of optical technology applications were overviewed. Roadmap on China''s future lunar, mars, jupiter and asteroids exploration was introduced. Development trends and prospects of optical technology in lunar and deep space exploration were analyzed and proposed.