A surgical operating apparatus comprises an insertion portion (5) which has a distal end and a proximal end and which has a long axis and which is inserted into a body, a treatment portion (1A) which is disposed at the distal end of the insertion portion (5) and which has a plurality of selectable surgical functions, an operation portion (4) disposed at the proximal end of the insertion portion (5), a plurality of switches (54, 55) which are provided in the operation portion (4) and which select the surgical functions, and a bulging portion (501) which is disposed between the switches (54, 55) and which divides the switches (54, 55) and which doubles as a finger receiving portion.
