The utility model discloses an installation cabinet used for a water pressure wireless remote-detector in a water supply network, which comprises a vertical-type cabinet body made of plastic materials. A bearing plate is arranged in the vertical-type cabinet body, and the vertical-type cabinet body is divided into two communicated cavities by the bearing plate, and an installation door with an entrance guard mechanism is arranged on the side wall of the cavity which is positioned at the upper part of the bearing plate. The installation cabinet has the advantages that the vertical-type cabinet body made of plastic materials replaces the current inspection well to bear a water pressure wireless remote-detector for installation; the vertical-type cabinet body is divided into the two communicated cavities by the bearing plate, when the cabinet is used, the transmission part of the water pressure wireless remote-detector is arranged on the bearing plate, and the water pressure collection part is arranged in the cavity below the bearing plate. Because the whole vertical-type cabinet body is made of all-plastics, the problems of wetting by rain, flooding and damp are solved, the electromagnetic shielding is avoided, so that the investment cost of the equipment is reduced, the inspection and the maintenance are convenient, and the working conditions are improved.