Abstract: In the face of global warming,it is urgent to develop new comprehensive utilization technology of coal with low energy,low carbon and environmental protection. Chemical looping technology is a new technology of chemical conversion and energy utilization. Aspen Plus software was used to establish the chemical looping gasification process. The influence of typical coal and moisture content on chemical looping gasification process in western China was simulated on a pilot scale. Combined with the coal composition and gasification process,the reasons for different syngas content produced by different coal types were analyzed. The method to simulate different moisture content in coal was proposed to analyze how moisture affects chemical looping gasification process,which provided theoretical guidance for pilot scale enlargement. The results show that the syngas yield of coal of Yangchangwan Coal in Ningxia( NX) and Shenmu coal in Shaanxi( SX) is higher than 2. 0 Nm3/kg( coal),and the cold gas efficiency is higher than 0. 9. The syngas yield from coal of Zhaotong coal in Yunnan( YN) is lower than 1.0 Nm3/kg( coal) and the cold gas efficiency is the lowest. The syngas yield and the cold gas efficiency are as follows: NX>SX> Yili coal in Xinjiang( XJ) > Erdos coal in Inner Mongolia( NM) >YN. Because moisture increases steam and carries away heat,the higher the moisture content in coal is,the worse the gasification is. When the water content in coal drops from22.38%( wt) to 0,the yield of syngas increases and the efficiency of cold gas increases by 34.5%.The heat required for gasification reactors is reduced by 8.89%. Therefore,in terms of raw material selection,in order to get more syngas,coal with high fixed carbon,less moisture and low volatile matter should be selected as raw material. The drying device is added before the coal enters the gasifier to improve the yield of syngas and the efficiency of cold gas.