The utility model relates to a dinosaur trailer toy which comprises a trailer body. A through hole is formed in the center of the trailer body, a connecting rod is arranged in the through hole, and two ends of the connecting rod are both connected with building blocks I. Building blocks II are connected at the rear end of the trailer body, two axles are arranged at the lower end of the trailer body, two ends of each axle are both connected with wheels, and a pull is connected with the front end of the trailer body. The connection points of each axle and the wheels are not the center of wheels. The connecting rod is fixed in the through hole through strings. The building blocks II are fixed at the rear end of the trailer body through strings. The dinosaur trailer toy has the advantages that with the fixed connection way of the axles and noncentral points of the wheels, the toy swings in drag to drive swing of the building blocks I and the building blocks II, and thus the toy moves and interest of children is further attracted. Coordination ability and observation ability of hands,brain, eyes of children are trained.