Portable vehicle body frame checking fixture

The utility model relates to a portable vehicle body frame checking fixture which comprises a detection body and a frame, wherein the detection body is formed by split joint of multiple segments, a telescoping gap is arranged between every two segments, the cross section of the frame is L-shaped, and the frame and the detection body are in fixed connection and then form an I-shaped cross section together. The portable vehicle body frame checking fixture provided by the utility model has the advantages of a light weight, good stability and easy operation; since the detection body employs a multi-segment structure, the detection body is allowed to be stabilized in a permitted range in accordance with temperature changes, and thus, the detection precision of the checking fixture is improved.