Currently, multi-core system is prevalent in desktop, laptop or servers. The web proxy as a server provider can save network traffic overhead and shorten communication time. Especially with the fast development of wireless Internet accessing, the web proxy will take more important role. In this case, we research the web proxy behavior and exploit parallel subtasks deeply. Based on this, we propose CP (CPUPipeline) technique to build parallel tasks in multi-core system. The result shows that our scheme can efficiently improve throughput for handling the incoming requests per second and take full advantage of the computing capacity provided by multicore system.