A scroll compressor comprising: a casing; a drive motor which is held in place within the casing and has an internal flow passage and an external flow passage to pass through in an axis direction; a rotation shaft which is combined with the drive motor for rotation; a frame that is provided under the drive motor and through which the rotation shaft passes for support; a first scroll which is provided under the frame and on whose one flank surface a first wrap is formed; a second scroll which is provided between the frame and the first scroll, on which a second wrap that is engaged with the first wrap is formed, with which the rotation shaft is eccentrically combined in a manner that an eccentricity portion of the rotation shaft overlaps the second wrap in a radial direction, and which forms a compression chamber between the second scroll itself and the first scroll, while performing an orbiting motion with respect to the first scroll; and a flow passage separation unit which is formed in the shape of a ring, and separates a space between the drive motor and the frame into an internal space that communicates with the internal flow passage in the drive motor and an external space that communicates with the external flow passage, wherein the flow passage separation unit includes a first flow passage guide that protrudes from an upper surface of the frame toward a lower surface of the drive motor, characterized in that the flow passage separation unit further includes a second flow passage guide that protrudes from the lower surface of the drive motor toward the upper surface of the frame, wherein the first and second flow passage guides (410, 420) are arranged to have a sealing portion between the first and second flow passage guides (410, 420). a casing; a drive motor which is held in place within the casing and has an internal flow passage and an external flow passage to pass through in an axis direction; a rotation shaft which is combined with the drive motor for rotation; a frame that is provided under the drive motor and through which the rotation shaft passes for support; a first scroll which is provided under the frame and on whose one flank surface a first wrap is formed; a second scroll which is provided between the frame and the first scroll, on which a second wrap that is engaged with the first wrap is formed, with which the rotation shaft is eccentrically combined in a manner that an eccentricity portion of the rotation shaft overlaps the second wrap in a radial direction, and which forms a compression chamber between the second scroll itself and the first scroll, while performing an orbiting motion with respect to the first scroll; and a flow passage separation unit which is formed in the shape of a ring, and separates a space between the drive motor and the frame into an internal space that communicates with the internal flow passage in the drive motor and an external space that communicates with the external flow passage, wherein the flow passage separation unit includes a first flow passage guide that protrudes from an upper surface of the frame toward a lower surface of the drive motor, characterized in that the flow passage separation unit further includes a second flow passage guide that protrudes from the lower surface of the drive motor toward the upper surface of the frame, wherein the first and second flow passage guides (410, 420) are arranged to have a sealing portion between the first and second flow passage guides (410, 420).