The invention discloses an electricity larceny prevention method for detecting a short-circuit electric energy meter, and the method comprises the steps: collecting a current effective value Ui of a secondary circuit of a current transformer and a voltage effective value Uu of a current wiring terminal of an electric energy meter; dividing the voltage effective value Uu of the current wiring terminal of the electric energy meter by a voltage signal effective value obtained through the conversion of the current effective value Ui of the secondary circuit of the current transformer, and obtaining an equivalent voltage resistance value UR of a current coil resistor of the electric energy meter, wherein because the UR is in proportion to the resistance of two ends of the electric energy meter,whether the electric energy meter is in a short-circuit condition for electricity larceny or not can be judged through the detection of the change of the UR value. The method is advantageous in thatthe method can accurately determine a short-circuit electric energy meter electricity larceny condition and a condition that a user does not consume electricity, and can achieve the short-circuit current transformer judgment through the resistance change during the short-circuit condition of the electric energy meter.