The utility model provides an elastic damping body pressure relief device, belongs to strip production equipment repair tools technical field for the elastic damping body to belted steel workroll bearing case carries out the pressure release. Its technical scheme is: it is the steel drum respectively with lower lock sleeve to go up the lock sleeve, the lower extreme of going up the lock sleeve passes through threaded connection with the upper end of lower lock sleeve, go up lock sleeve hole lower extreme and be connected relatively on the lock sleeve hole down, one side vertical welding of extension board is on the outer wall of last lock sleeve, the front end of spanner passes through the axis of rotation and is connected with the shaft hole rotation on the extension board, the middle part of spanner is connected through the round pin axle with the upper end of thimble, the thimble inserts perpendicularly downwards in the hole of lock sleeve and lower lock sleeve, the thimble is sliding fit with interior pore wall, it is relative with the elastic damping body that the lower extreme of thimble passes down the bottom of lock sleeve. The utility model has the advantages of being simple in structure and convenient in operation, factor of safety is high, can effectively release the internal residual pressure of elastic damping, eliminates the potential safety hazard that the unreasonable release of elastic damping body pressure power caused.