The definition, goal and impacts of deep space exploration are summarized. After a retrospect to past deep space exploration activities of human being to date, both recent deep space missions and future missions in 5 years are listed. There are also brief introductions about the future strategic plans of NASA, ESA, RAKA, JAXA and ISRO. Then the authors analyzed some important features of global deep space exploration scheme. Key technologies of deep space exploration are also determined. The status of China´s deep space exploration plan is introduced including CE-1 lunar orbiter, the subsequent China Lunar Exploration Program, especially proposals for the second stage of China Lunar Exploration Program, China-Russia Mars Exploration, Kuafu Mission, Hard X-Ray Modulated Telescope, Space Solar Telescope. At the end, some suggestions for China ´ s future deep space exploration are made.