Abstract: Affected by paleogene large-scale faults in Laizhouwan depression,fault dextral strike -slip in Yanlu and large -scale uplifts in Kendong,west strike-slip zone in Laizhou-wan presents complicated structural characteristics,with a significant impact on oil and gas migration,accumulation and preservation. Under the joint action of paleogene faults in Laizhouwan depression and dextral strike-slip in Yanlu,a series of large-scale extended faults and strike-slip regula-tion fault have been produced,which provides favorable con-ditions for trap formation and hydrocarbon migration. At the same time affected by the large-scale uplift in Dongken,a large-scale strike-slip zone tilted in north-south direc-tion,which makes oil and gas reservoirs early formed vul-nerable to damage.