This utility model discloses a testing fixture for waterproof plugs on wire harness connectors, including a base plate. Push-pull members and
metal conductive plates are respectively connected to both ends of the base plate. A fixed seat and a slide are connected to the base plate between the push-pull members and the
metal conductive plates. The slide is slidably fitted onto the base plate, and a base for accommodating connectors is connected to the slide. A retaining plate is connected above the base. Several sliding sleeves are connected to the fixed seat, and
metal pins are slidably fitted onto the sliding sleeves. An elastic element is connected inside the sliding sleeve, and the elastic element pushes the metal pins to move away from the metal conductive plates. When the push-pull member pushes the slide to move closer to the metal conductive plates, the connector on the base pushes the metal pins to contact the metal conductive plates. This utility model replaces traditional
visual inspection, providing a mistake-proof function, effectively controlling product quality, reducing employee fatigue, preventing defective products from leaving the product, and minimizing company losses.