Since the cold war, with China’s reform and opening-up and changing relationship in northeast Asia, the relationship between China and DPRK has changed. The economic relationship and personnel exchanges between China and DPRK were seriously weaken due to the establishment of China-South Korea diplomatic relations in 1992. Especially when Kim Il Sung died in 1994, the interactions at the top level were totally cut off between the two countries. It was Kim Yong Nam who was the president of the Presidium of the Supreme People’s Assembly visited to China in1999 that ended the cooling-off period and the two countries’ relationship returned to normal. Entering to the 21st century, the economic relationship between two countries has been greatly enhanced. In 2006 and 2009, however, DPRK conducted the nuclear tests despite condemnation of international community and the opposition of China following China’s voting in favor of UN’s No.1874resolution. What’s worse, Cheonan incident in 2009 and shelling of Yeonpyeong Island in2010 damaged China’s strategic interests. Due to Cheonan incident, South Korea strengthened military relationship with America, which not only influenced the stability in northeast Asia but threatened China’s strategic interests. Interestingly, although there existed great conflicts and contradictions between political relationships of the two countries, the economic corporation has never been interrupted but expanding continuously. After the State Council of China officially approved the outline of development of Chang-Ji-Tu pilot Zone in 2009, the two countries economic relations has been increasingly strengthened. Basedon the stage and current situation, this paper comprehensively analyzes implication of politics and economics between China-DPRK economic corporations.