The reactive commutation intelligent pump jack is an integrated mechanical and electrical product with high performance and energy-saving function. It adopts a new non-energy consumption commutation technology, which improves the mechanical efficiency by 40%, saves energy consumption by 30%, compared to the regular walking beam pump jack. Using intelligent simulation and digital mixed control, it adjusts oil pumping strokes according to the load condition to get economical and reasonable matching to various oil wells operational parameters. It has a good adaptability. Adopting balanced opposed mode, it has precise balance.