Describes the advantages and theory behind generation of power by IGCC, the structural breakdown of IGCC power station and the performance of equipment reguired, the development status of world major generation of power by IGCC projects and R D status of generation of power by IGCC technology in China, and points out the enviroumental protection requirement for the development of electric power provides a wide and bright prospect and space for the development of generation of power by IGCC, and the technology of generating power using clean coal is the right choice for power plants buring coal for generation of power in the new century to achieve sustained development.