Pressure testing machine

The utility model relates to a pressure testing machine, and relates to the technical field of concrete detection, the pressure testing machine comprises an operation box and a bearing table arranged on one side of the operation box, the bearing table is provided with a test board and a plurality of guide rods, the guide rods are slidably provided with a pressure plate, the pressure plate corresponds to the test board in the vertical direction, and the pressure plate is arranged on the test board. Any guide rod is rotationally connected with a cleaning rod, a cavity is formed in the middle of the cleaning rod, an adsorption opening communicated with the cavity is formed in the end face, close to the test table, of the cleaning rod, and an adsorption collection assembly communicated with the cavity is arranged at one end of the cleaning rod; the cleaning rod is provided with bristles on the peripheral side of the adsorption port, and the bearing table is provided with a collection box on the peripheral side of