Abstract: To stabilize oil production and enhance oil recovery continuously in Gaoqianbei block, the profile control and displacement technology of cross-link polymer is put into use. According to the reservoir characteristics and residual oil in Gaoqianbei block, the feasibility of the bulk profile control and displacement using cross-link polymer in Gaoqianbei block is analysed. At the same time, the target area is selected and 26 wells are designed for profile control and displacement. The system of profile control and displacement is also optimized. Furthermore., numerical simulation is used and economical factor is considered, and the scientific and reasonable plan is designed. The results indicate that the technology is suitable for edge-water reservoir and oil production is enhanced.