The invention provides a method for solving passive jamming of an electric transmission line on a short wave direction-finding table. The method comprises the following steps: judging whether the quarter-wave resonance frequency of an electric transmission line iron tower is in the working frequency range of the short wave direction-finding table, and executing next step if the quarter-wave resonance frequency of the electric transmission line iron tower is in the working frequency range of the short wave direction-finding table; judging whether the vertical distance between an electric transmission line and the short wave direction-finding table meets current national standard requirements, and executing next step if the vertical distance between the electric transmission line and the short wave direction-finding table does not meet the current national standard requirements; adjusting the height of the electric transmission line iron tower, enabling the quarter-wave resonance frequency of the electric transmission line iron tower to be outside the working frequency of the short wave direction-finding table, and calculating the protection distance; judging whether the influence of the electric transmission line on the short wave direction-finding table surpasses the national standard requests. According to the method, the height of the electric transmission line iron tower is adjusted, the resonance frequency, which is strongest in passive jamming and is quarter-wave in tower height, of the electric transmission line iron tower is made to be located outside the wireless direction-finding table, so that the passive jamming of the electric transmission line on the direction-finding table is reduced.