The invention provides a buoyancy fire hose with high safety performance and high pressure resistance. The buoyancy fire hose comprises a fire hose body, and the two ends of the fire hose body are each provided with a joint assembly; the fire hose body comprises a lining layer, a braid layer, a jacket layer and a covering layer from inside to outside in sequence; the components of the lining layerand the jacket layer comprise, by mass, 0.5%-1.2% of graphene oxide, 2%-5% of polyethylene glycol, 0.08%-1.5% of accelerators DTDC, 1%-3% of dicumyl peroxide, 2%-7% of zinc oxide, 0.6%-2% of 2,2-methylene dimethyl tert-butyl phenol, 0.03%-0.6% of stearic acid and the balance ethylene propylene diene monomer; and the components of the covering layer comprise, by mass, 70%-85% of styrene-acrylate emulsion, 1%-3% of succinic acid, 2%-5% of kaolin, 0.5%-3% of sodium dodecyl sulfate, 0.01%-1% of vinyl triethoxy silane, 0.8%-1.6% of calcium stearate and the balance deionized water. The buoyancy fire hose is light in weight and high in pressure and wear resistance, so that the laying speed of the buoyancy fire hose is higher in daily fire fighting, and the laying distance is longer.