The invention relates to the technical field of paper diapers, and discloses a paper diaper quality inspection device convenient to adjust. The paper diaper quality inspection device includes a base,the top of the base is movably connected with a microscope through a movable rod, the top of the base is slidably connected with a moving plate through a sliding rail, the side face of the moving plate is fixedly connected with a connecting block, the side, away from the moving plate, of the connecting block is fixedly connected with a pull rod, the top of the moving plate is fixedly connected with a clamping rail, the outer surface of the clamping rail is movably connected with a clamping plate, the top of the clamping plate is fixedly connected with a drawing plate, the inner side of the clamping plate is fixedly connected with a bearing, the bearing is internally and fixedly connected with a rotating rod, and the middle of the rotating rod is fixedly connected with an idler wheel. According to the paper diaper quality inspection device convenient to adjust, by pulling the pull rod, the moving plate moves left and right on the sliding rail conveniently, by pulling the drawing rod, the drawing plate moves back and forth on the clamping rail conveniently, the advantage of convenient adjustment of the observation angle during quality inspection of paper diapers is achieved, and theproblem that the observation angles of existing paper diapers are difficult to adjust is solved.