Because the scale of EPON network increases rapidly, it is required to design an EPON network topology management system in order to improve the management and maintenance of EPON network, which can intuitively display the EPON network topology structure, the network working status and alarm in real time. Firstly, the design and implementation of topology management system is introduced. The designed system is divided into structure of three levels including acquisition, processing and view. The acquisition layer employs the TL1 communication protocol mode to get network information. The processing layer uses B/S structure and processing system is based on MVC model. The GUI of display layer employs HTML 5 Canvas tag to display the topology relationship. And finally, through constructing the test environment, it proves the design is feasible and effective.