A torque rod, in which a front rubber and a rear rubber are respectively disposed at front and rear sides of a partition of a case fixed to a sub-frame and in which a pipe portion of a rod connected at a front end portion thereof to a power train passes through the front rubber, the partition, and the rear rubber and is coupled to an end plate, may include an attenuation device configured to cause flow of a liquid therein according to a load or vibration transferred from the rod, wherein the attenuation device is separably mounted between the rod and the end plate.