The invention relates to a relaxation device, particularly relates to a relaxation device for cooperating with legs of an athlete, and aims at solving the technical problems of providing the relaxation device, having relatively uniform massaging intensity and capable of saving time, for cooperating with the legs of the athlete. The relaxation device for cooperating with the legs of the athlete involved in the invention is characterized by comprising a base, a supporting plate, a shell body, two vertical plates, a rotary shaft, a first curved plate, a second curved plate, massaging sticks and the like; the top of the base is fixedly connected with the supporting plate with a supporting effect; the shell body is detachably mounted at the right side of the top of the supporting plate; the vertical plates are respectively arranged at the left and right sides of the top in the shell body; and the rotary shaft is fixedly connected between the two vertical plates. According to the relaxationdevice involved in the invention, the massaging sticks can be used for massaging shanks of the athlete to alleviate pain of the shanks of the athlete, so that the athlete is relaxed; the massaging intensity is relatively uniform; thighs of the athlete can be massaged through a thigh massaging mechanism and the athlete can be relaxed better; and the time of the athlete can be saved.