The invention discloses a breakwater structure capable of achieving wave energy electricity generating by using piezoelectric materials. The breakwater structure comprises a breakwater main body and amovable baffle, wherein the breakwater main body is arranged in an inclined mode, a plurality of grooves are formed in the inclined face of the breakwater main body, and a plurality of piezoelectricvibrators are arranged on the inner walls of the grooves; the movable baffle is arranged corresponding to the inclined face of the breakwater main body and is located on the surface of the inclined face, a plurality of bulges are arranged on the movable baffle, the bulges and the grooves are arranged in a one-to-one correspondence mode, and the bulges extend towards the interiors of the grooves; and an elastic piece is arranged at the end of each bulge, and a plurality of shifting pieces corresponding to the piezoelectric vibrators are arranged on the outer surfaces of the bulges. According tothe breakwater structure, a piezoelectric electricity generating technology is adopted, wave kinetic energy is directly converted to electric energy, the energy conversion efficiency is improved, themovable baffle is utilized as a wave energy absorbing device to play a buffering role, and the wave upwelling height is reduced; and the sizes of the piezoelectric electricity generating vibrators are small, a space in a breakwater is effectively saved, and the land space use rate behind the breakwater is improved.