本論文提出一組光學瞄準鏡的設計,針對100到700公尺能得到最佳使用視野的中距離瞄準,設計出物鏡口徑35mm且良視距離到達81mm的8倍光學瞄準鏡,並使其光學品質達到人眼的分辨極限,其中為了貼近實際人眼,設計時使用的波長與權重,是依據國際照明委員會所提出的人眼明視覺函數,另外,於本論文中也提出光學瞄準鏡的設計流程與模擬影像的方法,最後為了確保其量產化,也針對整個鏡組進行公差分析。The subject of this study is designing the optical telescopic sight, for the best view of middle distance aimed at Suitable for use in 100 to 700 meter. We design the 8x optical telescopic sight have 35mm objective lens diameter and the eye-relief to reach 81mm, and we that its optical quality of the human eye resolution limit, Incidentally, for closer to the actual human eye, we use the CIE human visual function at the wavelength and weight in our design, In addition we also presented the design process and the image simulation method, Finally, the tolerance was analyzed to ensure the productivity.