Abstract: The geological condition in east depression Ou 35-36 well area of Liaohe basin is complex,complete well is less,recognition of reservoir distribution rule is unclear,whole development degree is rather low.Comprehensively applying research method and technological measures of three dimensional seismic data fine interpretation,sedimentary facies division and reservoir feature analysis,research on the study area tectonic feature and reservoir sand body distribution rule have been carried on,geological feature of study reservoir have been determined.Based on this,the advantageous trap is evaluated,three well site deployment is proposed.