An image capturing device is provided that can effectively suppress moisture penetration into a chamber, caused by cooling a CCD, the image capturing device including the CCD serving as an image capturing element, a chamber that accommodates the CCD at the inside thereof, a Peltier element that is provided inside the chamber and that cools the CCD, a flexible substrate that is provided to be across over an inside and an outside of the chamber and that connects the CCD to an electronic circuit which is outside the chamber, at least both sides of a portion of the flexible substrate, which portion is outside the chamber, being covered with an aluminum foil.