Abstract: Disclosed are a scroll compression mechanism and a scroll compressor. The scroll compression mechanism comprises a non-orbiting scroll member, an orbiting scroll member, an oil supply passage, an adjusting valve and a fluid pressure passage comprising a first end and a second end. The first end is in fluid communication with a first pressure source to apply a first pressure to the movable valve body, the second end is in fluid communication with a second pressure source to apply a second pressure to the movable valve body, so that based on a pressure difference between the first and second pressures the movable valve body can selectively move toward a first direction of reducing a flow cross-sectional area of the oil supply passage and toward a second direction of increasing the flow cross-sectional area of the oil supply passage, thereby adjusting an oil supply amount to the scroll compression mechanism.