Oil production is a typical high energy consumption industry. Due to the heavy load, light load, no-load and power generation operation conditions of the system, the power supply, drive link and load of the pumping motor system are in low efficiency operation state. To solve these problems, the energy saving technology of this kind of load is analyzed. It is an important way to realize the energy saving of oilfield production. The characteristics and current situation of widely applied technologies such as voltage regulation, energy saving motor, intermittent power supply etc. are studied systematically. Firstly, based on the in-depth analysis of the operation conditions and energy consumption characteristics of the beam pumping motors (BPMs), the nonparametric energy saving technologies which do not change the operation cycle and stroke times of the BPMs are classified according to different energy saving mechanisms and implementation methods. Secondly, the characteristics of the widely used energy saving technologies, such as voltage regulation, energy saving motor and intermittent power supply, are systematically analyzed. Finally, as for improving the better energy saving effect and widening application field of the energy saving technology, some suggestions like detailed analysis of system energy efficiency, integration of various energy saving technologies, and comprehensive transformation of regional energy saving are put forward.