The smart sprinkler system is a non powered, repeatable opening and closing, mechanically controlled automatic sprinkler fire extinguishing system composed of temperature controlled automatic opening and closing valves, open nozzles, filters, one-way valves, heat gathering hoods, sensors, pipe networks, platform remote management software and other related components and software. When a fire occurs and reaches the set temperature, it can automatically spray and extinguish the fire. If it reignites, the spray can be restarted. Through IOT sensing devices and real-time video images of the scene, a smart fire safety management system is constructed.