A high-resolution endoscope device that is reduced in size and weight is provided. The endoscope device (100) according to the present invention comprises an insertion unit (110) configured to be inserted into a body cavity and guide light from an object, an illumination device (120) attached to the insertion unit (110) and illuminating the object, and an imaging device (130) having an imaging element (131) provided with 8K-level or higher-level pixels arranged in a matrix form. The imaging element (131) receives light reflected from the object and guided by the insertion unit (110) and outputs imaging signals of the object. The insertion unit (110) and the illumination device (120) are able to be attached to the imaging device (130). The imaging device (130) is able to be grasped and carried by a human hand. The imaging device (130) has a mounting part (135) that incorporates the imaging element (131) and a grasping part (136) that is grasped and carried by a human hand. The cross-sectional area of the mounting part (135) perpendicular to an optical axis is equal to or larger than the cross-sectional area of the grasping part (136) perpendicular to the optical axis. Fig. 1
