The invention provides a baby carrier rear wheel damping linkage device which aims at solving the problem that in the prior art, the damping effect of a damping device is poor. A baby carrier comprises a frame and a rear wheel axle. The baby carrier rear wheel damping linkage device comprises a round rod and two linkage torsion springs. The round rod is arranged on the frame and is parallel to the rear wheel axle, and both the linkage torsion springs are connected between the frame and the rear wheel axle. Each linkage torsion spring is formed by a torsion spring body and a supporting rod, wherein the torsion spring body is connected to the round rod in a sleeving mode, the two ends of the torsion spring body are a fixed end and a free end respectively, one end of the supporting rod is fixedly connected with the free end of the torsion spring body, and the other end of the supporting rod is connected to the rear wheel axle. According to the baby carrier rear wheel damping linkage device, the round rod is arranged on the frame and is parallel to the rear wheel axle, the two linkage torsion springs are connected between the frame and the rear wheel axle and can play both the role in transmitting power and the role in damping, and both damping in the vertical direction and damping in the front and rear direction are achieved in the damping process.