Without fixing screws from the radial direction of the unit the unit, to provide an endoscope for fixing the unit to firmly distal end body. The endoscope includes an insertion portion 27 which is inserted into the hole of the observation object, provided at a distal end portion of the insertion portion 27, a tip member having a hole portion 48, and the cylindrical member to be accommodated in the hole 48 , the tip member or by one engaging of said tubular member includes a fixing member 51 which with one said fixed across the other of said tip member and said tubular member in the penetrating direction of the hole, the .ユニットに対してユニットの径方向からビスを固定することなく、ユニットを強固に先端部本体に固定する内視鏡を提供する。 内視鏡は、観察対象の孔内に挿入される挿入部27と、挿入部27の先端部に設けられ、孔部48を有する先端部材と、孔部48内に収納される筒状部材と、前記先端部材または前記筒状部材の一方と係合することで、該一方とともに前記先端部材または前記筒状部材の他方を前記孔部の貫通方向に挟んで固定する固定部材51と、を備える。
