The invention discloses an ingot pulling control method applied during smelting of a titanium/titanium alloy ingot in an EB furnace. According to the control method, materials of an oil cylinder bodyand a piston rod are replaced with 27SiMn seamless tubes, the roundness and the cylindricity of the inner diameter of a cylinder barrel are 8-9 grades, the perpendicularity of the end face of the cylinder barrel is 7 grades, the inner smoothness of the cylinder barrel is 0.3 to 0.1 micron, the radial run-out tolerance of the outer diameter of the piston on the inner control is 7-8 grades, the perpendicularity tolerance of the end surface to the axis of an inner hole is 7 grades, the tolerance of the cylindricity of the piston is 10 grades; and a 27SiMn melt is deposited on the surface of the piston rod, the deposition thickness is 3-4 mm, the straightness is smaller than or equal to 0.02mm/10 mm, the surface roughness is smaller than or equal to 0.1 to 0.2 mm, then a nodular cast iron ringis used for sealing, and a gap between the piston and the cylinder barrel is 0.15 to 0.25 mm. In the control method, an oil cylinder is simple in structure, convenient to maintain and control, capable of meeting the overall mechanical property of the ingot, stable and uniform in microstructure and small, tidy and orderly in appearance surface ripple.
