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Dieless drawing is one of the most advanced processing technologies. After heating and cooling, the diameters of the wires or rubes can be reduced without drawing dies. Comparing to the traditional drawing processes, the workpiece is no longer touched with the processing equipment. The production efficiency is increased while the consumption of energy is also saved. In this paper, the dieless drawing process will be researched based on the gradient slab method. All the significant parameters in this process will be taken into the consideration, such as drawing velocities, thermal properties, and temperature conditions and geometrical parameters of material. The effects of pairwise related parameters on the final area and temperature as well as deformation length will be shown in three-dimensional diagrams. A novel analysis model of dieless drawing will also be proposed based on vertical gradient slab method. This model will be seen as a strong theoretical support for studies of dieless drawing.