A scroll compressor comprising: - a fixed scroll provided in a container ; - an orbiting scroll configured to orbit relative to the fixed scroll ; - a rotary shaft configured to transmit rotational drive force to the orbiting scroll ; - an eccentric shaft portion provided on one end side of the rotary shaft to be eccentric to the rotary shaft ; - a balance weight-equipped slider integrated of a slider portion having a slide hole and a balance weight portion , in a plane perpendicular to an axis of the rotary shaft , movable along the slide hole relative to the eccentric shaft portion inserted in the slide hole , and having centrifugal force set to be greater than centrifugal force of the orbiting scroll ; and - an orbiting bearing provided to the orbiting scroll and rotatably supporting the slider portion of the balance weight-equipped slider , characterized by further comprising - a convex portion having a curved surface with one vertex, and provided to one of the eccentric direction-side side surface of the eccentric shaft portion and the inner wall surface of the slide hole facing the side surface, configured to act as a posture control unit provided at a position corresponding to a central portion in an axial direction of the orbiting bearing between the eccentric direction-side side surface of the eccentric shaft portion and the inner wall surface of the slide hole facing the side surface, and configured to control a posture of the balance weight-equipped slider so that the slider portion of the balance weight-equipped slider maintains the posture parallel to the orbiting bearing , and wherein the convex portion is configured to make point contact at one point when the slider portion is moved in the counter-eccentric direction. - a fixed scroll provided in a container ; - an orbiting scroll configured to orbit relative to the fixed scroll ; - a rotary shaft configured to transmit rotational drive force to the orbiting scroll ; - an eccentric shaft portion provided on one end side of the rotary shaft to be eccentric to the rotary shaft ; - a balance weight-equipped slider integrated of a slider portion having a slide hole and a balance weight portion , in a plane perpendicular to an axis of the rotary shaft , movable along the slide hole relative to the eccentric shaft portion inserted in the slide hole , and having centrifugal force set to be greater than centrifugal force of the orbiting scroll ; and - an orbiting bearing provided to the orbiting scroll and rotatably supporting the slider portion of the balance weight-equipped slider , characterized by further comprising - a convex portion having a curved surface with one vertex, and provided to one of the eccentric direction-side side surface of the eccentric shaft portion and the inner wall surface of the slide hole facing the side surface, configured to act as a posture control unit provided at a position corresponding to a central portion in an axial direction of the orbiting bearing between the eccentric direction-side side surface of the eccentric shaft portion and the inner wall surface of the slide hole facing the side surface, and configured to control a posture of the balance weight-equipped slider so that the slider portion of the balance weight-equipped slider maintains the posture parallel to the orbiting bearing , and wherein the convex portion is configured to make point contact at one point when the slider portion is moved in the counter-eccentric direction. <EOS>