Proposed a performance evaluation model for e-government project management based on the investigation on 15 various projects in Shanghai government from 2005 to 2006. The model includes: (A) a performance indicator system consists of 5 domains, (B) a nonlinear evaluation algorithm based on project risk theory. The model has been verified and applied in related departments in Shanghai government since 2007. The paper discussed the indicators design and the evaluation algorithm, and compared the evaluation results between the model and professional groups'.