Abstract: <b<Objective</b< According to the situation of detection technology, a new portable pipeline thickness gauge based on TICT theory is studied in this paper. Materials and <b<Methods</b< This paper brief describes the concrete design of the instrument, also lists the technical data obtained in the lab and experimental detection verified through pipeline; <b<Result</b< The result verifies the accuracy of instrument through actual pipeline. <b<Conclusion</b< The advantages of the method are that this kind of equipment is easy to be manufactured and is characterized by its high efficiency, high accuracy and high reliability.