An endoscope includes a bending section being disposed in an insertion section, a plurality of towing members disposed in the insertion section and in an operation section from the bending section, a disk member turnably provided in the operation section and configured to turn to tow and loosen the plurality of towing members, the plurality of towing members being suspended in an outer circumference of the disk member, operation members turnably disposed in the operation section and configured to turn the disk member to bend the bending section, and a turning shaft configured to turnably axially support the disk member and the operation members with respect to the operation section in a position decentered to the distal end side by a predetermined distance d with respect to a center of the disk member in an initial state in which the bending section is linear.