An objective of the present invention is to provide an endoscope device which, while maintaining desirable connector mounting operability, reliably prevents an occurrence of a problem in an electrical connection state between plug-side electrical terminals and receptacle-side electrical terminals from foreign matter such as furring being deposited upon the plug-side electrical terminals. Provided is an endoscope device (1), comprising: an endoscope (2), further comprising a plug (8P) on a terminal part of a universal cord (8) a light source device (3), further comprising a receptacle (3R) into which the plug (8P) is fitted plug-side electrical terminals (20) which are disposed upon the plug (8P), further comprising surfaces for sliding (24) sliding parts (34) which are disposed upon the receptacle (3R), and which slide upon the surfaces for sliding (24) in a prescribed timing from the commencement of the connection of the receptacle (3R) with the plug (8P) to the completion of the connection thereof and receptacle-side electrical terminals (33) which are disposed upon the receptacle (3R), and which will have made electrical contact with the surfaces for sliding (23) having slid upon the sliding parts (34) upon completion of the connection of the receptacle (3R) with the plug (8P).Lun des objectifs de la présente invention est dobtenir un dispositif dendoscope qui, tout en conservant une fonctionnalité souhaitable de montage de connecteur, empêche de manière fiable lapparition dun problème dans un état de connexion électrique entre des bornes électriques côté fiche et des bornes électriques côté prise à partir dune matière étrangère telle quune fourrure de construction déposée sur les bornes électriques côté fiche. La présente invention concerne un dispositif dendoscope (1), comprenant : un endoscope (2), comprenant en outre une fiche (8P) sur une partie dextrémité dun câble universel (8) un dispositif de source lumineuse (3), comprenant en outre une prise (3R) dans