The invention belongs to the technical field of cable inspection and relates to a fixture for cable inspection equipment. The fixture for the cable inspection equipment is composed of two opposite fixture bodies, the fixture bodies are rectangular, one lateral surface of each rectangle is a clamp surface, the lateral surface opposite to the clamp surface is a connecting surface, 1 to 2 arc-shaped holes are formed in the middle of the clamp surface along the long edge direction of the clamp surface, two openings of the arc-shaped hole are located in the clamp surface, and zigzag teeth are uniformly distributed on the whole clamp surface along the wide edge direction of the clamp surface. One dovetail groove is formed in each connecting surface along the wide edge direction of the connecting surface, and the width of the dovetail groove is matched with a chuck of the cable inspection equipment. When using, an inspected test sample passes through the arc-shaped holes in the fixture bodies, the chuck of the inspection equipment compresses the two fixture bodies, when measuring, the problem that the inspected test sample cannot be firmly clamped is solved through converting tension into pressure, and the fixture is suitable for the cable inspection equipment.