Abstract: Briefed here in the article are the outputs, apparent consumptions and the self-supply rate, etc.of the domestic steel tube over the years.And also detailed are the data concerning the import and export quantities and main type quantities of domestic steel tubes, seamless steel tubes and weld tubes as well as the names of the foreign countries to and from which the said steel tube products are exported and imported by China over the years.Since 1955, the steel tube yearly output has exceeded that of the import amount;and since 1982, domestic steel tubes have been exported, and from 2003 China has become a purely steel tube-export country, and in 2015 the total steel tube export amount was up to 8 918 300 tons.Along with the substantial increase of the steel tube export amount and the significant decrease of the steel tube import amount, the steel tube import and export pattern of the country has got remarkably changed, the competitiveness in the world steel tube market has been tremendously enhanced, and the influence has been constantly expanding.