The high-pressure negative pressure type leak detection equipment is composed of high-precision sensors for high pressure, low pressure, and negative pressure. Through system control, it can quickly perform uninterrupted leak detection of tested products using high, low, and negative pressure methods. It primarily tests the leak tightness and pressure resistance of products. Relevant data during testing can be displayed in digital and curve formats. It features data recording capabilities and product data analysis abilities. The system is easy to operate, and the accessories used are sourced from both imported and well-known domestic brands, ensuring stable and reliable performance.