The invention discloses a synchronization generator stator turn-to-turn short circuit detection method based on a RSO method; the detection method needs the following devices: a pulse generator (1), a data acquisition card (2), a computer (3); one-phase lead out wire of the detected synchronization generator stator conjunction box is connected with the pulse generator (like U1 U2, V1V2, W1W2); the pulse generator is connected with the data acquisition card; the data acquisition card is connected with the computer. The synchronization generator stator turn-to-turn short circuit detection method is an offline detection method, simple in operation steps, high in sensitivity, can accurately detect slight stator turn-to-turn short circuit faults, can determine abnormal point positions and timely send feedbacks, thus effectively preventing motor accidents caused by stator turn-to-turn short circuit faults.