An endoscope (1) comprises an insertion unit (2) having a bending portion (9) on a distal end side thereof, an endoscope main body (4) provided on a proximal end side of the insertion unit (2), a left-and-right direction bending mechanism (13) coupled with the bending portion (9), a left-and-right direction bending drive unit (23) which generates drive force to bend the bending portion (9) in a left-and-right direction, a drive force transmission mechanism (22) which transmits the drive force to the left-and-right direction bending mechanism (13) and a cord portion (5) which extends from the endoscope main body (4) and supplies electrical power from the outside to the left-and-right direction bending drive unit (23). The left-and-right direction bending drive unit (23) is provided on the endoscope main body (4) and arranged along an extending direction of the cord portion (5).
