Abstract: Dieless drawing, as a flexible metal forming technique, could provide rods/tubes with varied cross-section in axial direction and some other formed materials which are hard to be deformed by conventional drawing process. Based on the analysis of deformation mechanism and feasibility of tapered tubes via dieless drawing process, the calculation method of dieless drawing speed and hot/cooling source moving speed during tube forming is proposed theoretically with a relevant mathematical model given. Experimental investigation results showed that the mathematical model indicates variation of dieless drawing speed and hot/cooling source moving speed quite well, and it is available to schedule the two different speeds for dieless drawing.