The present invention provides a rotary disc for endoscope turning control apparatus, which comprises a body, and the top and the bottom of the body are respectively provided with an upper groove recessed from top toward bottom and a lower groove recessed from bottom toward top. A lateral plate is provided between the upper and lower grooves. The lateral plate has a first through hole communicating with the upper and lower grooves. The peripheries of the upper and lower grooves are respectively provided with an upper sidewall and a lower sidewall. The upper sidewall has a second through hole communicating with the upper groove, and the lower sidewall has a third through hole communicating with the lower groove. Thus, the shape of the rotary disc and the way that a rope mounted thereto are simpler than those of the conventional device.一種內視鏡轉向操控裝置之轉盤,包含有一本體,該本體之頂部及底部分別具有一由上而下凹陷之上凹槽及一由下而上凹陷之下凹槽,該上、下凹槽之間具有一橫板,該橫板具有一與該上、下凹槽連通之第一穿孔,該上、下凹槽周圍分別具有一上側壁及一下側壁,該上側壁具有一與該上凹槽連通之第二穿孔,該下側壁具有一與該下凹槽連通之第三穿孔;藉此,該轉盤的形狀及其設置繩索之方式較習用者更為簡單。10‧‧‧轉盤20‧‧‧繩索30‧‧‧本體33‧‧‧側周面34‧‧‧上凹槽341‧‧‧上側壁36‧‧‧上溝槽37‧‧‧下溝槽38‧‧‧橫板40‧‧‧管體
