The invention discloses an intelligent building safety management system based on big data, and the system comprises a data collection module, a data distribution module, a data calculation module, adata analysis module, a data discrimination module, a safety management module, a data interconnection module, a control module, a storage module, a warning indicator, a warning lamp, and a fire alarmmodule. The data collection module is used for collecting safety information of a building in real time, the data distribution module generates analysis signals from glass curtain wall data in the safety information and transmits the analysis signals to the data calculation module, and the data distribution module generates analysis signals from component strength data in the safety information and transmits the analysis signals to the data analysis module, the data distribution module generates a judgment signal according to the smoke concentration in the building and the temperature in thebuilding in the safety information and transmits the judgment signal to the data discrimination module, so that safety accidents are avoided, the service life of the building is prolonged, fire accidents are prevented, and the life and property safety of personnel is protected.