This paper dicusses on the issue of the development of China s market economy from six aspects. (1) Basic Content and Conclusions on the development of China s market economy. (2) Further progress in building market-oriented economy in China. (3) Assessment of the degree of market economy development in China. (4) New progress in 2004 in developing market economy in China. (5) A general analysis of twelve key questions concerning market economy. (6) Resolution of the non-market economy  issue: a win-win option.