An endoscope device includes a tip section including an imaging element for outputting a pixel signal of a captured image and configured to be inserted into an object, and a flexible section including a first serial signal transmission path along which a setting related to photographing is transmitted to the imaging element via first serial communication and a second serial signal transmission path along which the pixel signal is transmitted via second serial communication and configured to guide the tip section into the object, wherein the second serial signal transmission path includes an equalizer circuit configured to correct frequency characteristics of a serial signal and a limiting amplifier circuit configured to amplify the serial signal corrected by the equalizer circuit, and wherein the equalizer circuit and the limiting amplifier circuit are connected on the same substrate surface.