PROBLEM TO BE SOLVED: To obtain a flexible pipe end structure of an endoscope, the length of which can be adjusted in accordance with the length of protrusion from a flexible pipe end of a built-in object.SOLUTION: In an endoscope having a flexible pipe elongated from an operation part, a built-in object for being coupled to a component in the operation part is inserted into the flexible pipe. A flexible pipe end structure of the endoscope includes a first mouthpiece which is provided at the operation part-side end of the flexible pipe in the state of being coupled to the flexible pipe, and a second mouthpiece which enables an axial relative position to be adjusted with respect to the first mouthpiece and which is to be coupled to an operation part-side member.
