The utility model discloses an axial force bearing device of a fire control pump. The device comprises an impeller and a guiding shell which are matched with each other, wherein a first annular groove is formed in the end face, matched with the guiding shell, of the impeller, and a load bearing cushion is arranged in the first annular groove. The device can solve the problems that an axial force bearing device of a conventional pump is too large in size, complex to manufacture, high in cost, inconvenient to maintain, poor in reliability and the like. The device is simple in structure, convenient to manufacture, reliable in performance, low in cost, easy to install and small in size and heat damage, the service life of the pump is effectively prolonged, the maintaining period is shortened, and maintaining cost is reduced. The axial force bearing device is suitable for vehicle-mounted fire control pumps of passenger cars, freight cars and the like.