The invention discloses an autorotation calibration target of an automobile-morphology active vision measuring laser plane and aims at solving a problem that a current automobile-morphology active vision measuring laser plane can not be calibrated under a polar coordinate. A pavement-irregularity piezoelectric dynamic detector is mainly formed by a calibration bar group (1) and a revolving platform (2). By using the autorotation calibration target, the structure is simple, detection precision is high, an accumulative error is small, complete functions are possessed, an operation is simple, installation is easy, versatility is high, cost is low, performance is reliable and a condition that the calibration can be performed on the automobile-morphology active vision measuring laser plane in an automobile detection industry can be satisfied.