An edible fungus fresh-keeping device comprises a box body, a box door and an air storage tank, the box body is hinged to the box door, and a drawer type fresh-keeping box is arranged at the inner side of the box body; a temperature and humidity sensor and a pressure sensor are arranged in the box body, a refrigeration water tank is placed at the top end outside the box body and is connected witha water outlet pipe, and the water outlet pipe penetrates through the top end of the box body and is arranged inside the box body; a spray head is arranged right above the drawer type fresh-keeping box, an activated carbon filter element is installed on a return pipe, the other end of the return pipe is fixedly connected with a self-priming pump; the self-priming pump is connected with a refrigeration water tank, the air storage tank is connected with the box body through an air outlet pipe, a display screen controller is installed at the outer side of the box door and controls the temperatureand humidity sensor and the pressure sensor. The refrigeration water tank is arranged at the outer side of the fresh-keeping device, the temperature in the fresh-keeping device cannot be increased, the moisture can be recycled, so that the edible fungus fresh-keeping device is energy-saving and environment friendly, and is simple in overall operation and high in automation degree.