The invention discloses an electronic field terminal system in a transmission project. The electronic field terminal system comprises a road navigation module, an exploration route track module, a tower displacement module, a data field module, a verification module and a digitized transfer module, wherein the road navigation module realizes road and tower position navigation by utilizing network public map resources and flying images, the exploration route track module records an exploration route track and realizes positioning records of scene and position information in the field terminal system, the tower displacement module realizes tower displacement in field, the data field module transmits tower position coordination data between GPS (global positioning system) equipment and the electronic field terminal system, the verification module carries out field crossing distance, mechanics and electrical verification, and the digitized transfer module transfers the content and achievement of field work to a local database. The electronic field terminal system has the beneficial effects that road navigation is realized, the field entering steps are simplified, the field entering time is saved, the use and the carry are convenient, information is back-up, the operation manner is improved, the field work intensity is reduced, and the working efficiency is improved.