A medical manipulator having: a longitudinal member; an arm body portion; a first bending portion; a second bending portion; an angle wire; a connecting rod; an operating wire; an arm operating portion including a guide member; wherein the arm operating portion has: a link portion; turning member; and an operating lever; wherein the turning member has: a rotating shaft which is slidably supported by the guide member so as to rotate around a coupling portion; and a guided member which is slidably engaged by the guide member so as to rotate around the rotating shaft in accordance with an operation of the operating lever.