Abstract: The embodiment of the present invention discloses a transformer winding short circuit fault detection method, comprising: acquiring magnetic flux leakage data between transformer windings; determining a short circuit fault area according to the magnetic flux leakage data; establishing a transformer finite element model; and simulating the transformer finite element model based on the short circuit fault area, so as to obtain a short circuit database. The present invention achieves precise detection on transformer winding short circuit faults, not only improving the accuracy and efficiency of fault detection.