The invention discloses a glue leakage preventing structure of a torque wrench. The torque wrench comprises a shaft tube, two driving portions and adjusting buttons disposed at two ends of the shaft tube, an insulating tube, and a heat insulating tube and a grip tube disposed on the outer peripheral side of the shaft tube in order, wherein the insulating tube further has a plug portion, and the grip tube is formed with a set of joint portions corresponding to the plug portion; a glue receiving portion disposed on the inner ring side of the plug portion to provide a glue filling; a ring groovearranged on the inner diameter surface of the grip tube; a plurality of O-rings disposed corresponding to the adhesive area and the ring groove, to limit the adhesive to be retained in the glue receiving portion.