Comprehensive testing fixture

The utility model belongs to the technical field of engineering measurement, and particularly relates to a comprehensive testing fixture, which comprises a substrate and standard components, and the standard components comprise a battery core standard component, an end plate standard component and a side plate standard component. The base plate is provided with a positioning groove, and the end plate standard parts and the battery core standard parts located between the end plate standard parts are arranged and clamped in the positioning groove. The end plate standard parts are in clamping connection with the side plate standard parts; the comprehensive testing fixture further comprises an end plate supporting piece, the end plate supporting piece comprises a movable end supporting plate and a fixed end supporting plate, and the movable end supporting plate can move relative to the fixed end supporting plate and exert pressure on the standard part. According to the comprehensive testing fixture provided by th