The utility model discloses a hose of multi -ply construction, including adopting the seamless hose body of extruding one shot forming, the hose body includes inside thermal -break layer, the outer jacket, the outer jacket cladding is in the inside thermal -break layer outside, the stamp layer, the cladding of stamp layer is in the outer jacket outside, anti - aging layer, the anti - aging layer cladding is in the stamp layer outside, the waterproof layer, the waterproof layer cladding is in the anti - aging layer outside, corrosion -resistant layer, the corrosion -resistant layer cladding is in the waterproof layer outside. The utility model relates to a rationally, simple structure, difficult ageing, can effectually prevent rainwater infiltration to the hose inside, waterproof performance is good to can effectually prevent oil or acid or subtract or other various chemical to the corruption of hose, anti -corrosion performance is good.