Suspension device of sucker rod

The invention discloses a suspension device of a sucker rod. The suspension device of the sucker rod comprises a cylindrical suspension body. Connection parts are connected to the two sides of the suspension body, and the surface of each connection part is provided with an outer thread. The connection parts are used for being connected with the sucker rod. The suspension body is provided with at least one groove which penetrates through the suspension body in the axial direction. When the suspension body is placed in an oil tube suspension unit, the grooves can form a channel for air injection. By means of the suspension device of the sucker rod, the air injection process can be completed without lifting a rod string, so that the increased well repairing cost caused by ascending and descending the sucker rod is reduced, and the oil production efficiency is prevented from being reduced.