Hollow sucker rod is in order to effectively mining "high pour-point and high viscosity, high waxy" crude oil and the production of special sucker rod. In addition to the center of the hollow sucker rod hole injecting into heat carrier (thermal oil, hot water, steam), chemicals, or into the heating cable for viscosity melt wax, improve crude oil mobility; Can also be made of sand, salt solutions, slim-hole drilling, and layered oil production; Also can use its stiffness big, inherit the characteristics of the torque is used to drive the downhole screw pump.