Surface Drive and PC pump (Progressive Cavity Pump) is a kind of high-efficiency and energy-saving artificial lift system, which is composed of surface drive and downhole PC pump. Surface drive suspends and rotates rod string and power is then transmitted downhole, which in turn drives the PC pump. PC pump consists of two parts: rotor and stator. The high strength, chrome-plated rotor is the only moving part of PC pump. Stator is a kind of tube with elastic synthetic rubber molded inside. A variety of elastomeric is available for different applications. When rotor rotates in the stator, a series of sealed cavities are formed and these cavities move axially from the intake end to the displacement side. When one cavity disappears at the displacement side, a new cavity is formed at the intake side. Trough continuous formation, motion and disappearance of these cavities, fluid is then brought to the surface. Owing to the unique features, the surface drive and PC pump finds wide applications in oil fields. They are strongly recommended for high viscous, sandy, gassy oil besides most well conditions.