The utility model belongs to the technical field of the bridge structures construction, particularly, involve a transition slab seam fuse structure. It includes abutment, bracket, transition slab, vertical crab -bolt, waters the concrete in the same direction as the bridge after and to crab -bolt, distributing bar, chamfer, bituminous felt, the abutment sets up chamfer and pre -buried good vertical crab -bolt above the bracket, transition slab end department is pre -buried to have suitable bridge to place on the bracket to crab -bolt, its two -layer bituminous felt through the bottom, the distributing bar is trapezoidal setting along the chamfer to weld vertical crab -bolt and arrange the bridge to the crab -bolt, water the concrete in the space between abutment and the transition slab after being filled with. Compared with the prior art, transition slab seam fuse structure keep at elastic range under the normal use condition, shear failure under the strong shock effect, play the protection bridge structures the effect.