Abstract: In order to increase the absolute double-parameter induction eddy current sensor measuring accuracy and realize the single plane multi parameter survey, the influence on the survey of the object temperature had been researched. The column conductor temperature examination technology mathematical model was established, and the corresponding examination method was designed. Then copper and aluminum bars were actually tested, substituted the results in to the theoretical fomular, the theoretical temperature value was obtained. Compared with the actually measured value, the error was very small, it proved validity of the theoretics in temperature measuring.