The invention belongs to the technical field of breakwaters and specifically relates to a comb-shaped breakwater unit and system integrated with multiple ocean energy power generation devices. According to the comb-shaped breakwater unit and system integrated with the multiple ocean energy power generation devices, through an oscillating float type power generation system and an oscillating watercolumn type power generation system, wave energy in front of an embankment is partially converted into electric energy; waves are gathered through a contracted water channel, the vibration amplitude is increased by using bin resonance formed by asymmetric draft fender, relative motion mechanical energy of a float is increased, and therefore, the conversion efficiency of the wave energy is enhanced; tidal current energy is converted into electric energy by using a hydraulic turbine type power generation device, the water flow is bundled through the contracted water channel, and therefore, the power generation efficiency is enhanced; and wind energy is converted into electric energy through a wind driven generator, and the water surface is stabilized to reduce the wave height in a harbor. According to the comb-shaped breakwater unit and system integrated with the multiple ocean energy power generation devices, by converting the wave energy in front of the breakwater and the tidal currentenergy into electric energy, the load borne on the breakwater is reduced, and the integral stability of an integration system is enhanced; and meanwhile, through an integrated comb-shaped breakwatersystem, the working environment of the power generation device is improved, and the independent building cost of each power generation system is reduced.