High pressure airtightness testing equipment uses a high-pressure gas source as the main power source to perform high-pressure sealing testing on the tested products; The test bench adopts PLC main control and touch screen Chinese display operation; The product is quickly clamped using pneumatic principles, with wear-resistant silicone as the sealing element. The sealing performance of the product is determined by detecting the pressure difference and the upper and lower limits of the pressure generated inside the product through a high-precision pressure transmitter. Fixtures are universal fixtures that can achieve a maximum of 90% or more for diversified products based on customer provided product designs. The testing process is distributed, OK automatically enters the next step of detection, NG corresponds to the indicator light on, and the sound and light alarm; The accessories used in the testing equipment are imported and well-known domestic brands, ensuring stable and reliable operation.