The invention discloses an arm pain physiotherapy instrument. The arm pain physiotherapy instrument comprises a semi-circular arm holding device and a semi-circular arm pressing device, wherein an annular
medicine bag is attached to the inner sides of the semi-circular arm holding device and the semi-circular arm pressing device, one end of the semi-circular arm holding device is connected with one end of the semi-circular arm pressing device through a rotating shaft, the other end of the semi-circular arm holding device is connected with the other end of the semi-circular arm pressing device through a pin shaft, a vertical cavity is formed in the semi-circular arm holding device, a reciprocating moving rod and a drive are arranged in the vertical cavity, the drive is connected with the reciprocating moving rod, a through groove is formed in the semi-circular arm holding device, massaging teeth are arranged on the reciprocating moving rod, the massaging teeth are arranged in the through groove and stretch and retract in the through groove under the driving of the reciprocating moving rod, a vertical hollow groove is formed in the semi-circular arm pressing device, a vibrating rod and a vibrator are arranged in the vertical hollow groove, the vibrator is connected with the vibrating rod, the vibrating rod is provided with vibrating massaging balls, and the vibrating massaging balls stretch out of the semi-circular arm pressing device. According to the arm pain physiotherapy instrument disclosed by the invention, the effect is obvious, the structure is simple, the time and the labor resource can be effectively reduced, the applicability is good, and the practicability is high.