The invention discloses a water spray type torpedo. 8 to 12 circular holes 3 are formed in a torpedo shell around a torpedo shaft axis OO' on the same circumference of the tapered end part of the torpedo, the shaft axes of the circular holes 3 are crossed on the same point on the torpedo shaft axis OO', all the circular holes 3 are crossed on the torpedo shaft axis OO' and form a tapered hole, the tail part of the torpedo is provided with a rotor 16 of an asynchronous motor of a hollow sleeve type rotor, the axis of a hollow sleeve of the rotor 16 is coaxial with the torpedo shaft axis OO', a hydraulic propulsion turbine 11 is coaxial with the hollow sleeve of the rotor 16 and is fixedly arranged on the tail part of the hollow sleeve of the rotor 16, the tapered hole formed by the crossing of all the circular holes is communicated with the hollow sleeve of the rotor 16, a stator coil 13 is embedded into a frame 15, a tail water spray pipe 8 is arranged at the tail end of the hollow sleeve of the rotor 16, and the tail water spray pipe 8 is coaxial with the torpedo shaft axis OO'; and four direction control water spray pipes 9 are distributed at interval of 90 degrees on the same circumference vertical to the torpedo shaft axis OO', and each direction control water spray pipe is connected with the hollow sleeve of the rotor 16 through a square controlled electromagnetic water valve 10.