Reservoir heterogeneity is caused by the interaction of sedimentation, diagenesis and structure factors. It is very important for researching residual oil distribution law, adjusting development project and improving remaining reserves to study reservoir heterogeneity characteristics and reservoir controlling factors. Using of logging, drilling data and the principle of reservoir sedimentology, reservoir heterogeneity of Fuyang Reservoir is quantitatively studied by finely classifying and comparing study area formation in Yushulin oilfield of