Automatic differential pressure detector

The automatic differential pressure detector comprises a main body, a cylinder, a plurality of vacuum generators, a plurality of electronic flowmeters and a plurality of electronic differential pressure gauges. The main body is provided with a detection platform and a plurality of first openings, the first openings are located on the detection platform, and the detection platform is configured to bear an object to be detected on the first openings. The air cylinder is arranged on the main body and provided with an upper clamp, the upper clamp is provided with a plurality of fluid channels, and each fluid channel is provided with a second opening. The second openings are located in the bottom face of the upper clamp, and all the second openings face and correspond to all the first openings. Each vacuum generator is connected with each first opening. The electronic flowmeter is electrically connected with the main body and is configured to measure the flow of the fluid flowing through the object to be measured.