A scroll compressor of the present invention includes a first discharge port 35 which is in communication with a compression chamber 50, a discharge space 30H which is in communication with the first discharge port 35, a second discharge port 21 which brings the discharge space 30H into communication with a high pressure space 11, a discharge check valve 131 capable of closing the second discharge port 21, a bypass port 36 which brings the compression chamber 50 into communication with the discharge space 30H, and a bypass check valve 121 capable of closing the bypass port 36, the fixed scroll 30 can move in an axial direction of the fixed scroll between the partition plate 20 and the main bearing 60, a high pressure is applied to the discharge space 30H and according to this, the fixed scroll 30 can be pressed against the orbiting scroll 40.