The test fixture is a special fixture designed for the electrical performance continuity test designed with the PCB board as a model. It has a single-sided fixture and a double-sided fixture. In the production of high-precision circuit boards, the use of universal fixtures to test their electrical energy has brought certain difficulties to the manufacture and testing of fixtures. At the same time, there are problems such as back-side current drive and reliability in load-carrying test technology. Troubled. The universal test fixture manufactured by our company can adapt to the electrical performance test of high-precision printed boards, and the test reliability reaches 100%, thus saving the manufacturing cost of the fixture.