The utility model belongs to ocean anti -corrosion of metal field, in particular to is used for the ocean engineering anticorrosive quick installation sacrificial anode's of steel construction sacrificial anode pipe strap fixture device under water for one kind. The device includes pipe strap anchor clamps monomer, connecting plate (13) and spiral conducting rod (14), and two at least pipe strap anchor clamps monomers constitute one with connecting plate (13) and take open -ended tubulose space, and this space can hold nanotube form metallic structure thing (15), each pipe strap anchor clamps monomer includes " U " shaped plate (3) and rotor plate (6) at least, and rotor plate (6) set up the opening part at " U " shaped plate (3), fix tubular metal structure thing (15) steerablely, be provided with between the pipe strap anchor clamps monomer of two outer ends sacrificial anode (1). The utility model discloses simple structure, convenient to use exempts from underwater welding, can reduce the underwater construction cost according to the need to be changed positive pole of different grade type, size of protection by a wide margin, reduces underwater construction work load, improves work efficiency, maintains fastly.