Abstract: Owing to its unique performance,the welded steel pipe is widely used in such industrial sectors as oil-gas conveyance,gas-well exploration and mechanical component processing,etc.Even under the impact by the global financial crisis,the consumption structure of the welded steel pipe is still closely associated with the structure of the national economy.Based on the variance analysis of the welded pipe consumption structure,it is identified by the co-authors that the adjustment of the product mix of the welded steel pipe shall be realized by means of expanding the functional demand of the product via marketization,and optimizing the manufacture technology and extending the processing scope of the product so as to positively guide the market application.