Hulihai Subsag is peripheral depression of Liaohe Oilfield, with low degree of exploration. Under the guidance of the theory of high resolution sequences stratigraphy, combined with comprehensive analysis of rock cores, well logs and seismic data, the stratigraphic sequence correlation of Jiufotang Formation and Shahai Formation of Hulihai Subsag was carried out. Jiufotang Formation was divided into two middle-term cyclic sequences and six short-term cyclic sequences, while Shahai Formation was divided into three middle-term cyclic sequences. Based on isochronous stratigraphic correlation method, the well-tie section was correlated, and the isochronous stratigraphic frameworks were established.