Along with the rapid development of Beijing, focused on the present situation of the discontinuity and deficiency of urban culture and history, this paper tries to construct an urban memory resources platform represented by "Beijing Urban Memory" project. Through the design of "1+1+N" overall platform framework, introducing the layered construction of digital resources library, "Beijing Urban Memory" system designed several subsystems such as resource management subsystem, resources visualization subsystem, professional retrieval subsystem, system uses a LAOP architecture. In addition, this paper designed the corresponding network and server scenari and developed system platform for both general and professional users. At present, the platform has been developed and online, which is a beneficial practice of Beijing culture "going out" strategy.