Factors of affecting coal gasification mainly are the physical and chemical properties of coal gasified, the operation conditions of gasification process and the types of gasifiers etc. According to coal selection practice for Nanchuan town gas engineering, this paper describes the industrial test on gasification by mixed firing with Xishui coal and Nanchuan coal. The results of the test show that it is complete feasible to gasify by mixed firing at the ratio of Xishui cool the Nanchuan coal 6: 4.