In this paper

according to two kinds of gas-filling stations

LNG filling station and CNG filling station

the research progress on methane leakage at gas filling stations at home and abroad in recent years was reviewed. The focus is on comparative analysis of studies on methane leakage generation methods

establishment of leakage models

and calculation of leakage. The analysis and summary of the leakage calculation model and CFD numerical simulation of the gas filling station led to the following conclusions: 1) There are obvious differences in the direction and progress of research at home and abroad. 2) For the BOG research of LNG filling station

the calculation model has not been completely established. 3) The transformation of CNG filling stations into LNG filling stations has become a development direction. But for the BOG of LNG filling stations

there are still errors in the research and the current technology is not mature enough which become a major problem in the transformation of filling stations.