Along with the fast development of electronics science and technology, electronics science and technology also follows to change with each passing day, Bell invent the wired communication phone (1876) to shorten the person and others'' distance up to now, and in recent years of the microchip slice high technology develop quickly and make wireless communication more universal. The the convenience of the wireless communication are used to gradually replace a wired telephone. Thesis proposes to invest and research the WCDMA cellular phone receiver to increase it’s sensitivity, and signal to noise ratio, shorten development schedule by the proprietor, increase a competition ability in the third generation mobile communication the service of the industry, and going deep in to probe into its WCDMA the radio frequency front end the analysis of design.