Abstract: From the decline curve method,capacity analytic formula and numerical simulation method,the research progress on shale gas reservoir capacity evaluation both at home and abroad has been carried out.Through summarization and comparison,the development and improvement of these three methods have been put forward.As for decline curve method,stage research and combination model should be considered.As for capacity analytic formula,shale gas reservoir geological conditions should be considered in model study.As for numerical simulation method,the geological modeling techniques should be considered in complex fracture network.In practical production,comprehensive monitoring techniques should be taken into consideration.