Conventional gas gathering manner is applied in Single Gas Field development, in which gas from each single well is directly transported into the gathering station for treatment. With continuous development of the gas field, the number of gas gathering stations increases gradually. In previous gas gathering station surface construction, there are such problems as complex technological process, long construction period and large land occupation. A new-style integrated natural gas treatment plant was applied in order to enhance productivity and management efficiency and speed up the construction of gas gathering station. This plant can effectively shorten construction period and enhance management efficiency. Based on functions and features of the integrated gas gathering and treatment plant, introduced are application effects of the plant in gas gathering technological process optimization and simplification. In combination with practical application effects of the plant at Su 36-1 gathering station in Changqing Gas Field, analyzed are problems of the plant in production and pointed out is the improvement direction in the future.