The invention relates to an intelligent warehouse fire alarm system through multi-point push and an alarm method thereof. The alarm system includes a main controller, and also comprises an informationacquisition module, an information processing module, a transmission module and a voice module, wherein the information acquisition module, the information processing module, the transmission moduleand the voice module are connected with the main controller, the information acquisition module, the transmission module and the voice module are connected with the information processing module, andthe voice module is connected with the transmission module. The system is simple and efficient. All the modules are cooperated with each other, and the logic is strict. Through multi-point push, the system is timely and effective, is high in sensitivity, is high in control ability, and can improve the fire response ability of a warehouse. Meanwhile, relevant people can be notified in a timely, efficient and accurate manner and make a response in the shortest time, thereby reducing losses caused by the fire to the minimum and greatly guaranteeing life and property safety of people. The system is more practical and is more suitable for popularization.