The invention relates to a portable water rescue propulsion device which comprises a ship body with a hollow interior, a notch is formed in the bottom of the rear end of the ship body, a storage battery and a propulsion motor are arranged in the ship body, and the output end of the propulsion motor extends into the notch to be connected with a
propeller. A rotatable steering rod is arranged at theend, away from the notch, of the ship body, a driving gear is arranged on the steering rod in a sleeving mode, a
rudder stock extending out of the ship body and matched with the
propeller is arrangedin the ship body, a driven gear is arranged at the end, located in the ship body, of the
rudder stock in a sleeving mode, and gear belts are arranged on the driving gear and the driven gear. The topof the steering rod extends out of the ship body to be connected with a steering cross rod, a
rudder plate is arranged at the end, located in the notch, of the rudder rod, an anti-
rollover device is arranged at the bottom of the ship body, and a charging interface is formed in the ship body. The propulsion device has the advantages of being convenient to carry, having the functions of direction adjustment and
rollover prevention, and enabling rescuers to be close to rescued persons quickly.