Late-stage accumulation of natural gases is beneficial for the preservation of gases for the gases have bigger diffusing capacity than petroleum. The Neotectonic movement is the last event on a large scale in China's tectonic evolution history. The movement controlled the natural gas accumulation dramatically. As for source rocks with late hydrocarbon generation, the traps developed by the Newtectonics can well match the late gas generation. This will certainly benefit late gas accumulation. As for early-formed gas pools, the Neotectonics may adjust the gas pools vertically or laterally to form new gas pools. In addition, the Neotectonics can also improve the storage capacity of some reservoirs. The Neotectonic movement not only produces traps, but also causes fractures, which connect the source rock and the reservoir to be a pathway for gas migration. Episodic gas accumulation can easily occur during the Neotectonics, which will bring about high efficiency of gas supply and thus gas pools can be easily formed. Besides, Neotectonics will probably destroy early-formed gas pools in areas of violent tectonics.