The invention belongs to the technical field of wave power generation, and relates to a wave energy absorber. The wave energy absorber comprises a first hydraulic cylinder, a push plate, a bearing frame, a first gear, a supporting frame, second hydraulic cylinders, second sliding blocks, second sliding rails, third sliding rails, third sliding blocks, third hydraulic cylinders, floating plates, a second frame, a machine base, connecting rods, first sliding blocks, first blades, connecting columns, second blades, supporting rods, first sliding rails, a generator, a rotary shaft, a second gear, a support, a nut, a lead screw, a first frame and a brace rod. The upper end and the lower end of the lead screw are mounted on the bearing frame. The push plate is mounted on the upper portion of the bearing frame, and a piston rod of the first hydraulic cylinder is connected with the push plate. The wave energy absorber has the beneficial effect of being capable of utilizing multiple motion manners of waves at the same time.