Hanging storage and pressure type ultra-fine dry powder fire extinguishing device (hereinafter referred to as fire extinguishing device), is a new generation of highly efficient and environmentally friendly fire fighting products. The ABC ultra-fine dry powder extinguishing agent is non-toxic, non-polluting, does not destroy the ozone layer of the atmosphere, is non-corrosive to the protection, non-irritating to human skin and respiratory tract, easy to clean up after the eruption, and will not cause secondary damage. Ultra-fine dry powder extinguishing agent extinguish fire quickly, high efficiency, is a halon extinguishing agent ideal alternative. 1、Simple structure, reliable performance, easy installation, small space occupation and short construction period. 2、With temperature-sensitive automatic start function. 3、The product is suitable for full flooding application. 4、Compared with gas and fine water mist, the system is greatly simplified, simple construction and inexpensive.