以系统安全工程能力成熟模型作为理论依据,构造出基于模型的风险因素, 采用解释结构模型对电子政务信息系统的风险进行了科学的分析与评价,并结合具体实例,重点探讨了方法的应用与结果的分析,给出了预防电子政务信息系统风险的思路和方法。This paper constructs risk factors base on SSE-CMM,and Presents a scientific exploration of the analysis and assessment of e-government information system’s risk by applying the methods of system engineering and ISM. It focuses on the application of the methods and the result analysis in the actual case. Some proposals and solutions for the risk are also raised in the paper.