The invention discloses a three-hole location degree checking fixture. The three-hole location degree checking fixture comprises a substrate and at least three handles, the substrate is provided with a pedestal, at least three brackets and an upright post, the brackets are connected with the pedestal, the upright post does not contact with the pedestal and the brackets, each bracket is provided with a fast clamp, the handles are arranged independently, the pedestal is provided with a locating pin, a locating hole and a central shaft hole, the positions of the locating pin and the locating hole are determined according to a hole of a product to be measured, each handle is a hollow column, the outer diameter of the handle is set according to a round hole of the product to be measured, handle holes are opened in the upright post, and the aperture of each of the handle holes and central shaft hole is equal to the outer diameter of the handle. The three-hole location degree checking fixture is high in detection efficiency and low in cost.