This paper is written from the job of Shenzhen Unicom WCDMA wireless network optimization. Do some theoretical analysis and practice verifications on the WCDMA network optimization .The paper consists of six parts. Part One gives a brief introduction to the WCDMA system and the significance of network optimization. Part Two gives introduction to Shenzhen Unicom's WCDMA network optimization project. Part Three introduces in detail on Shenzhen Unicom’s WCDMA network optimization process and methods. Introduced the principle and process of the single-point optimization and the cluster optimization. Part Four, Case introduced to Shenzhen Unicom’s WCDMA network optimization, single-station and cluster testing, analysis, improvement, optimize. The paper comes to the conclusion and prospects in the last part.不知道翻译的怎样,请高手赐教!