Abstract: Different coal gasification processes and different types of gasifier have different requirements for coal quality.If the selection is incorrect，the production index of the coal gasification plant will decline or even fail to operate properly.Therefore，through the investigation of China's coal chemical industry technology development situation，the requirements of coal blending in entrained flow furnace，pulverized coal gasifier，entrained flow gasifier，fluidized bed gasifier and fixed bed gasifier are collected and analyzed in detail.According to analysis of the sampling test and compare with the shortcomings of the existing evaluation index，we update the requirements for the previous coal gasification index.In the end，we set up a set of coal quality evaluation index system for coal gasification according to China's current situation for the first time.