Based on the characteristics of displacement pressure caprocks and remaining pressures of reservoirs, the relation ofmatching type of gas accumulation and loss ability with reserves abundance is studied. The result shows that matching type of strong gas accumulation and poor loss ability is favorable for gas accumulation, followed by strong gas accumulation and mediumloss ability and better gas accumulation and poor loss ability. It is considered that there are 5 matching types of gas accumulation and loss ability of 19 gas reservoirs in Xushen Gasfield. The most is the matching type of strong gas accumulation and better loss ability, and the second is the matching type of strong gas accumulation and medium loss ability. Among the 19 gas reservoirs in Xushen Gasfield, those with medium gas reserves abundance are the most, while those with high and lowgas reserves abundance are relatively less. It is considered that the matching type of strong gas accumulation and medium loss ability and the matching type of better gas accumulation and medium loss ability are the best matching types for forming gas reservoirs with high gas reserves abundance in Xushen Gasfield.