Abstract: Focused on a mixture use of the tower material grade for service transmission tower in the west of Inner Mongolia, make analysis of chemical composition and the measurement of Richard hardness for the common Q235T, Q345T and Q420T materials with portable mobile equipments.The elements of Si and Mn can be detected by direct-reading spectrometer with precision of±0.03%.The Richard hardness were measured by Richter hardness tester with precision of±10HLD.In addition, the destruction can be controlled in the standard allowable range by the combination of the pretreatment method on the spot and the zinc layer repairation method.Thus, the combination can realize the rapid non-destructive identification of service transmission line tower.