The statistics of the China natural gas industry prosperity index show that it reached 62.11 in the second quarter of 2018 (For detailed data,see Table 1),which is a relatively prosperous state;the prosperity index of natural gas production enterprises reached 63.16,a relatively prosperous state;natural gas sales companies\'prosperity index was 61.88,a relatively prosperous state;the prosperity trend index of the natural gas industry in the coming year was set at 78.13,a relatively prosperous state.