The utility model relates to an endoscope lens cleaning structure.The outer casing body is provided with a set of connecting holes, at least a first axial fluid channel and a first through hole.The socket hole is communicated with two ends of the outer casing body.The first axial fluid channel is axially arranged in the inner wall of the outer casing body.The first through hole is arranged at one end of the outer casing body and communicated with the first axial fluid channel.By sheathing the outer body of the outer body of the inner mirror lens,And the channel structure arranged by the outer sleeve body cleans the surface of the endoscope lens with fluid.To keep the lens surface clear.一種內視鏡鏡頭清潔結構,係包含:一外套本體具有一套接孔及至少一第一軸向流體通道及一第一通孔,該套接孔連通該外套本體兩端,該第一軸向流體通道軸向設置於該外套本體之內壁中,該第一通孔設置於該外套本體之一端並與該第一軸向流體通道相連通,透過將該外套本體套設於該內視鏡鏡頭外部,並由該外套本體所設置之通道結構通以流體對該內視鏡鏡頭進行表面清潔,藉以保持鏡頭表面清晰者。