Eccentricity measuring device for iron tower foundation of overhead transmission line

The invention belongs to the technical field of measuring tools, and discloses an overhead transmission line iron tower foundation eccentricity measuring device, which comprises a first positioning assembly, a second positioning assembly and a measuring assembly, and is characterized in that the first positioning assembly comprises a first pipe body, and a first positioning rule and a second positioning rule which are arranged in the first pipe body in a penetrating manner; the first positioning ruler and the second positioning ruler can move oppositely and simultaneously relative to the first pipe body so as to extend out of the two ends of the first pipe body by the same length. The second positioning assembly comprises a second pipe body as well as a third positioning rule and a fourth positioning rule which are arranged in the second pipe body in a penetrating manner, the center of the second pipe body is rotationally connected to the center of the first pipe body, and the third positioning rule and the f