Vernier caliper

The utility model relates to a vernier caliper, which comprises a main caliper, a fixing measuring detent of the main caliper, an auxiliary caliper, and a flexible measuring detent of the auxiliary caliper, which is characterized in that assemblage holes are drilled on the fixing measuring detent and the flexible measuring detent, locating Y-fittings are slantingly arranged in the assemblage holes of the fixing measuring detent and the flexible measuring detent. The locating Y-fittings are inwardly provided with locked clamp plates, screw shafts are arranged on the perpendicular locked clamp plates, and the screw shaft are provided with gaskets, springs, cappings and adjusting bolts. The Y-fittings are inwardly provided with measuring arms, which are fixed on the flexible measuring detent and the fixing measuring detent by the cappings and the adjusting bolts on the screw shafts, and the bottom of each measuring arm connects with the measuring detents. The utility model has the effects of multiple functions, convenient operation, compact structure, consummate layout, and easy implementation and the like.