The invention relates to the field of shower doors, and provides a shower door comprising a movable door, a frame and a closer, wherein the movable door is hinged with the frame; the closer comprisesa main body with a damper inside and a sliding body penetrating the first end of the main body and telescoping along the longitudinal direction of the main body; the second end of the main body and the outer end of the sliding body form two tail ends of the closer. The shower door also includes a clamping seat connected to the movable door and a fixed seat connected with the frame. One of the twotail ends of the closer is hinged with the clamping seat, and the other is hinged with the fixed seat. When the movable door is closed, the sliding body automatically protrudes out along the longitudinal direction of the main body, and when the sliding body almost reaches the extention limit position, the sliding body slowly and automatically protrudes out along the longitudinal direction of the main body under the function of the damper. When opening the movable door, the sliding body is retracted longitudinally along the main body under the force condition, and when the retracting limit position is reached, the sliding body stops automatical extending along the longitudinal direction of the main body. The sliding body automatically protrudes out along the longitudinal direction of the main body again after the sliding body leaves the limit position under the forced condition.