A scroll compressor comprising: a fixed scroll (30, 130, 230, 330) including a fixed-side end plate having a flat plate shape and a fixed-side wrap having a spiral shape and protruding from a front surface of the fixed-side end plate; a movable scroll including a movable-side end plate having a flat plate shape and a movable-side wrap having a spiral shape and protruding from a front surface of the movable-side end plate, the movable-side wrap being combined with the fixed-side wrap to form a compression chamber (Sc); and a cover member (60, 160, 360) disposed in a high-pressure space on a rear surface side of the fixed-side end plate and attached to the fixed scroll, wherein the fixed-side end plate includes a compression chamber adjacent portion at which the front surface of the fixed-side end plate faces the compression chamber, the compression chamber adjacent portion includes: a high-pressure adjacent portion disposed at a central portion of the compression chamber adjacent portion and at which the front surface of the fixed-side end plate faces the compression chamber having a high pressure; and an intermediate- and low-pressure adjacent portion disposed on an outer side of the high-pressure adjacent portion, and the cover member defines a rear surface adjacent space (S3, S31, S32) having a low or intermediate pressure that faces at least a part of a rear surface of the intermediate- and low-pressure adjacent portion in the compression chamber adjacent portion of the fixed-side end plate, characterized by an oil supply path through which oil having an intermediate pressure is supplied to the rear surface adjacent space, wherein an oil passage that guides the oil in the rear surface adjacent space to the compression chamber is formed in the fixed-side end plate. a fixed scroll (30, 130, 230, 330) including a fixed-side end plate having a flat plate shape and a fixed-side wrap having a spiral shape and protruding from a front surface of the fixed-side end plate; a movable scroll including a movable-side end plate having a flat plate shape and a movable-side wrap having a spiral shape and protruding from a front surface of the movable-side end plate, the movable-side wrap being combined with the fixed-side wrap to form a compression chamber (Sc); and a cover member (60, 160, 360) disposed in a high-pressure space on a rear surface side of the fixed-side end plate and attached to the fixed scroll, wherein the fixed-side end plate includes a compression chamber adjacent portion at which the front surface of the fixed-side end plate faces the compression chamber, the compression chamber adjacent portion includes: a high-pressure adjacent portion disposed at a central portion of the compression chamber adjacent portion and at which the front surface of the fixed-side end plate faces the compression chamber having a high pressure; and an intermediate- and low-pressure adjacent portion disposed on an outer side of the high-pressure adjacent portion, and a high-pressure adjacent portion disposed at a central portion of the compression chamber adjacent portion and at which the front surface of the fixed-side end plate faces the compression chamber having a high pressure; and an intermediate- and low-pressure adjacent portion disposed on an outer side of the high-pressure adjacent portion, and the cover member defines a rear surface adjacent space (S3, S31, S32) having a low or intermediate pressure that faces at least a part of a rear surface of the intermediate- and low-pressure adjacent portion in the compression chamber adjacent portion of the fixed-side end plate, characterized by an oil supply path through which oil having an intermediate pressure is supplied to the rear surface adjacent space, wherein an oil passage that guides the oil in the rear surface adjacent space to the compression chamber is formed in the fixed-side end plate.