Scroll plate assembly and scroll compressor

The utility model discloses a scroll plate assembly and a scroll compressor, the scroll plate assembly comprises: a static scroll plate, the static scroll plate is provided with a first thrust surface, the first thrust surface is provided with a first groove and a second groove; the orbiting scroll is meshed with the static scroll to form an air suction cavity, a back pressure channel, an oil supply channel and an oil inlet hole are formed in the orbiting scroll, the orbiting scroll is provided with a second thrust surface directly facing the first thrust surface, a first hole, a second hole and an oil outlet hole are formed in the second thrust surface, the second hole is communicated with the air suction cavity and the back pressure channel, the first hole is communicated with the back pressure channel, and the oil outlet hole is communicated with the oil supply channel. The oil outlet hole and the oil inlet hole are communicated with the oil supply channel; when the orbiting scroll revolves relative to the