Abstract: With the accelerating development of urban modernization, shopping malls, office buildings, underground garages, entertainment places and other functional building communities have sprung up, gradually meeting the people's needs for a better life, but the frequency of super large fire accidents is also increasing. In order to create a healthy and safe living environment, the staff of the fire rescue detachment not only need to carry out fire safety inspection on the living space of the densely populated community, but also need to do comprehensive fire supervision and management on the flammable and explosive areas such as industrial plants. In the context of the new era, the key to improving the efficiency of fire supervision is to gradually improve the level of fire supervision and management based on information means, and continuously improve the digital combat ability of fire teams. Based on the development status of fire supervision in China at the present stage, this paper will analyze the ways and strategies to strengthen fire supervision under the background of big data.