The present invention relates to a two-directional tip deflection device for endoscope, comprising a plurality of cylindrical units, a first wire, a second wire, a first flexible unit and a second flexible unit. These wires are passed through holes of cylindrical units. These flexible units are continuously passed through grooves of cylindrical units to form a tubular unit. The tubular unit can be bent by the tension of the first wire or the second wire to control the direction of the endoscope.本創作係有關一種內視鏡之可撓二向管結構,其包含複數個圓體元件、一第一線體、一第二線體、一第一彈性元件及一第二彈性元件,該些線體係穿設該些圓體元件之穿孔,該些彈性元件係連續地嵌設於該些圓體元件之凹槽,使複數個圓體元件組成一管狀體,該管狀體可依照第一線體或第二線體之拉引施力方向而使管狀體彎曲,進而控制內視鏡鏡頭之轉向。