Abstract: To improve welded tube measuring/weighing accuracy, the shortcomings of several currentlyused measuring/weighing systems are identified based on a full under-standing and comparison of them. As a result, a new welded tube measuring/weighing system is developed with consideration of the actual tube production conditions. The said system features such advantages as structural simplification, ease to operate and high measurement accuracy and repeatability accuracy. Described in the article are the configuration, operating principle and operation effectiveness of the said system.