The invention discloses a relief valve assembly for an emergency evacuation slide. The relief valve assembly comprises a stop valve, a pressure relief valve, an inflation valve and a display panel, wherein the display panel is arranged on the upper end of the stop valve, the inflation valve and the pressure relief valve are respectively arranged on the stop valve, an air channel is connected to the stop valve, and the air channel is connected with an air bottle; the stop valve comprises a first valve body, a valve seat is fixedly arranged in the first valve body, a three-way ball is arranged in the valve seat, a plurality of interfaces are formed in the valve seat, the valve seat is connected with the air channel, the pressure relief valve and the inflation valve through different interfaces, a transition shaft is connected to the upper end of the three-way ball, a chuck is connected to the upper end of the transition shaft, the chuck is arranged on the display panel, and the three-wayball is driven to rotate by the chuck by virtue of the transition shaft, so that the air channel is respectively connected with or disconnected from the pressure relief valve and the inflation valvethrough the three-way ball. Quick connection or air inflation of an air source is realized, air output with stable pressure relief is provided for the slide, and the relief valve assembly has the advantages of simplicity in operation, convenience in use and capability of reuse.