：数据生命周期模型是链接数据管理策略理念与实践的关键模型。文章通过梳理典型数据生命周期模型的构建思路与阶段特征，结合公共安全数据的来源与类型，构建了全面的公共安全数据生命周期模型，并以该模型为基础，在分析公共安全治理内容的阶段特征基础上，提出了基于生命周期的公共安全数据管理三维模型，并就模型的主要功能进行了探讨。

Data Life Cycle (DLC) model is the critical medium interlinking the data management strategies and practices. This paper analyzed the typical DLC models' construction and phases' characteristics as research basis. Combining the sources and features of public safety data, the overall public safety data life cycle model was constructed. Then basing on the public safety activities, the public safety data management model was put forward which combines the public safety data life cycle and the public safety activities life cycle. Meantime, the function of the public safety data management model was discussed as well.