The invention discloses a hydroreactive metal fuel swirl stamping ship propulsion system aiming at solving the problems that in an existing ship propulsion system, the maximum ship speed of a traditional propeller propulsion system is limited, and when water stamping is adopted for water spraying propulsion, the defect that the reaction form and speed of water and metal in a combustion chamber aredifficult to control exists. The hydroreactive metal fuel swirl stamping ship propulsion system comprises a water storage container, a high-pressure pump, a high-pressure power system, a hydraulic pressure stabilizing unit, a casing, a swirl generator, a gas supply system, a stamping cone, a combustion chamber, a spraying pipe and a metal particle supply system. The swirl generator, the stampingcone and the combustion chamber are sequentially arranged in the casing. According to the hydroreactive metal fuel swirl stamping ship propulsion system, through manual ventilation cavitation and swirl stamping, the speed and temperature of fluid before entering the combustion chamber are increased, so that the contact area between the fluid entering the combustion chamber and metal particles is increased, the reaction rate is increased, and the controllable continuous reaction of the water and the metal particles at the normal temperature and the normal pressure is achieved.