Aiming at the fire extinguishing method using fire extinguishing bomb ,a design of non-explosive firecxt inguishing bomb based on electro magnelie drive is proposed. The eleetromagnetic drive uses the prineiple otcoil mutual inductance coupling, uses the single-chip microcomputer to control the relay as a circuit switch , and instantaneously passes the electric energy stored by the capaeitor through the discharge coil, forming eddycurrents in the inductance coil, providing thrust for the fire extinguishing bomb , and indireetly converting the electric energy into the kinetic energy of the fire extinguishing bomb. The non-explosive design of the fireextinguishing cartridge realizes the separation of the cartridge head and body and the spraying of fireextinguishing materials by pressing the tactile switch on the top of the cartridge head, which not only reduces the destructiveness of the fire extinguishing cartridge, but also saves the cost by the reusable cartridge shelldc sign and reduces the waste of resources. Compared with other fire fighting methods, the design has the advantages of higher adjustability , wider fire extinguishing range ,lower environmental sensitivity , recyclability, high precision and high eliciency ,and has certain application and popularization value.