A kind of direction control mechanism of introscope of the related what of this creation,It include a direction turntable and a brake assemblies,Brake assemblies have a Brake Block and a control seat,It between Brake Block therein and control seat is combined together in such a way that spiral shell is set,Control seat is enabled to drive Brake Block relative direction turntable mobile when rotating between a releasing position and an application position,When controlling seat what releasing position,The Brake Block will not ejection direction turntable,Direction turntable at this time can be freely rotated,When controlling seat what application position,Brake Block meeting ejection direction turntable,Direction turntable at this time will be unable to rotate.本創作有關於一種內視鏡之方向控制機構，包含有一方向轉盤及一制動組件，制動組件具有一制動座及一控制座，其中的制動座與控制座之間是以螺設方式結合在一起，使得控制座在一釋放位置及一制動位置之間轉動時能夠驅動制動座相對方向轉盤移動，當控制座位於釋放位置時，該制動座不會推頂方向轉盤，此時的方向轉盤可以自由轉動，當控制座位於制動位置時，該制動座會推頂方向轉盤，此時的方向轉盤將無法轉動。
