Embodiments of the invention provide a power consumption data management system and method. In one embodiment, the system comprises an electric meter terminal, a mobile terminal and a server, wherein the electric meter terminal is used for detecting power consumption data in a set region and sending the detected power consumption data to the server; the mobile terminal is used for obtaining a unique device identification number of the electric meter terminal and sending a power consumption data obtaining request comprising the unique device identification number to the server; and the server is used for querying the power consumption data corresponding to the power consumption terminal according to the power consumption data obtaining request and sending the power consumption data to the mobile terminal. According to the system and the method, a user can view the power consumption data at any time according to the need of himself, so that the user experience is improved.