Detection support

The utility model relates to the technical field of vehicle detection, in particular to a support. The detection support comprises a base and a mounting rack, and the mounting rack is arranged on the upper surface of the base; a first guide rail is arranged on the upper surface of the base, a first vernier, a supporting piece and a second vernier are sequentially arranged on the first guide rail in a sliding mode, a limiting piece is arranged on the supporting piece and used for supporting a to-be-detected piece and limiting movement of the bottom of the to-be-detected piece, and the first vernier and the second vernier are used for abutting against the two sides of the to-be-detected piece in the width direction; a second guide rail is arranged on the mounting frame and extends towards the base, a third guide rail perpendicular to the second guide rail is slidably arranged on the second guide rail, the projection of the third guide rail on the base is perpendicular to the first guide rail, and a clamping dev