In order to control eutrophication, the total phosphorus(TP) concentration of a large landscape lake in Shanghai has been controlled to less than 0.02mg/L. To achieve this goal, a pilot plant study was carried out to investigate the effect of phosphorus removal by combined process of coagulation and adsorption. According to the test results, the efficiency of removal P by coagulation was satisfactory and the adsorbent had superior adsorption capacity for PO43-. Under the best experimental condition, PO43- could be almost totally removed and the concentration of TP could reach standard. When the deaerator tower was employed, the phosphorus adsorption capacity of adsorbent was much higher. HCl and NaOH were used in the process of opperation, which brought difficulties in system management and the energy consumption of the system was higher. The equipment also needed larger area. For all these reasons, it is necessary to think the specific situation of project in the application of the process.