The invention discloses a method for eliminating the single-phase grounding transitional resistance of double loops of the same tower. The method comprises the following steps that when distance protection is started, the voltage of a protective installation position of protective loops and the currents of the double loops are collected; the zero sequence currents passing the local ends of the protective installation position of the double loops are calculated respectively, a voltage balance equation is made according to the Kirchhoff law for an inherent electromagnetic ring network of the double loops of the same tower, the equation is solved to obtain the opposite-end zero sequence currents of a fault line, and further the zero-sequence current passing a fault point is obtained via solution. The method can accurately calculate the real and imaginary parts of the fault impedance, eliminate influence of high-resistance grounding on grounding distance relay, and ensures safe and stable operation of the power system.