Abstract: Briefed in the paper are the application scope and the current supply-demand situation of the small-sized seamless steel pipe. An analysis of the existing huge backward production capacities in this field in the country is focused on,while the consumption and production levels of such pipes by the year of 2015 is forecast. The manufacturing processes and equipment characteristics of various types of small-sized seamless steel pipe mills are elaborated. Comprehensive comparisons of the mills are made in terms of raw materials,product specification,production scale,quality level,and equipment and energy consumptions,etc. Finally proposals for developing domestic manufacturing equipment for small-sized seamless steel pipes are put forward.