To provide a bending device of an endoscope which has excellent operability to allow a user to simultaneously, easily, and surely bend a first bending portion and a second bending portion with fingers holding an operation portion.

In the bending device of an endoscope in which the first bending portion 2A on the front side and the second bending portion 2B on the rear side which can be bent independent of each other by a remote operation from an operation portion 4 are provided in a serial connected state, a turning type bending operation member 5 capable of bending the first bending portion 2A by a turning operation and a push button type bending operation member 6 capable of bending the second bending portion 2B by a push-in operation are disposed independent of each other in the operation portion 4.