Main procedures of rapid investigation of gas station mainly include data collection, visits, field reconnaissance, geophysical prospecting and sampling. The purpose is to get a preliminary understanding of the basic situation of the gas station, risk of leakage pollution and possible point of leakage pollution. Three gas stations respectively in Shanghai, Beijing and Nanjing were selected to carry out the procedures and confirm the effectiveness. Soil gas was taken and ground penetrating radar (GPR) was used to detect pollution in the two gas stations in Shanghai and Beijing. The results show that leakage pollution did exist at the two gas stations. GPR detection in the gas station in Nanjing confirmed that pollution did not exist at the site after soil remediation.