The invention discloses a resiliometer with an auxiliary measuring device. The resiliometer comprises a resiliometer main body and an auxiliary device arranged at the external part of the resiliometer main body in a sleeving manner, wherein the auxiliary device comprises a circular retaining cylinder and a guide pipe mounted at the upper part of the circular retaining cylinder in a sleeving manner; a circular flat plate is arranged at the top end of the circular retaining cylinder; a positioning mechanism and a guide mechanism connected with the circular flat plate are further arranged in the guide pipe respectively; the positioning mechanism comprises two telescopic positioning rods symmetrically arranged on the circular flat plate; spring fasteners are connected with the ends, far away from the circular flat plate, of the two telescopic positioning rods; the rear ends of the spring fasteners are connected with a spring B; the guide mechanism comprises two telescopic guide rods symmetrically arranged on the circular flat plate; base plates are connected with the ends, far away from circular flat plate, of the two telescopic guide rods; the rear ends of the base plates are connected with the spring B. The axis of the resiliometer is enabled to be always perpendicular to the testing surface of concrete, so that the working intensity of workers is greatly relieved, and resilience working efficiency is improved.