Abstract: With the quick development of oil/gas geochemical exploration(G.E.),not good application effects,the neglect of quality,badly representative samples,the obscure stages of oil/gas geochemical explo ration,the absolute application of indexes,the ignoring of regional geochemical study and other problems have occurred.In this paper,the authors make some suggestions to the correct treatment and application of G.E.technology,the serious execution of G.E.standard,the enforcement of laboratory measure au thentication and comprehensive study,etc.