An endoscope includes: an insertion portion； an operation portion provided on a proximal end side of the insertion portion, and including a first sheath body and a second sheath body which are attachable to and detachable from each other； a plurality of bending wires extended from a bending portion and guided into an operation portion internal space of the operation portion； a fluid tube, a light guide fiber bundle, and a signal cable extended from a distal end portion and guided into the operation portion internal space of the operation portion； a partitioning board member that partitions the operation portion internal space of the operation portion into a first space in which the plurality of bending wires are inserted and disposed, and a second space in which the fluid tube, the light guide fiber bundle and the signal cable are inserted and disposed； and an endoscope internal component position regulating member having predetermined resilience, is attachable to and detachable from a predetermined position of the partitioning board member, and in a state of being attached to the partitioning board member, regulates insertion states of the fluid tubes, the light guide fiber bundle, and the signal cable extended from the insertion portion toward the second space into a predetermined state.
