The utility model discloses a longitudinal tie structure between beam slab of high earthquake intensity seismic area, including having the end crossbeam of reserving anchorage holes and anchor backingplate, the movable connecting rod who has the piston and the inside cavity that has fluid medium of filling. Reserve anchorage holes at case roof beam or the suitable position of T beam -ends crossbeam according to the designing requirement, as the stiff end of movable connecting rod and cavity, the piston separates two communicating cavitys of formation with the cavity with the cavity, movable connecting rod is relative motion inside the cavity, the inside packing of cavity has fluid medium. The setting of longitudinal tie structure between the beam slab through simple and practical, solve high earthquake intensity seismic area simply supported girder bridge dun ding, continuous bridge divide ally oneself with the collision of the mound seismic action of the department underbeam body, the beam -ends concrete is broken, the expansion joint is destroyed, bridge deck pavement drawing breakage and main beam displacement are too big results in falling the roof beam scheduling problem.