An endoscope device includes: an insertion unit having segments continuously provided along an axial direction of the insertion unit and configured to be inserted into a lumen; a state quantity calculating unit configured to calculate a state quantity of each segment; variable rigidity portions provided for each segment to allow bending rigidity of each segment to be variable; an origin specifying unit configured to specify an origin segment among the segments in setting a segment range indicating which segment the bending rigidity is to be changed or in setting the bending rigidity, based on the state quantity of each segment; and an operation controller configured to: set the segment range or set the bending rigidity of each segment, based on the origin segment; and decrease bending rigidities of two or more continuously provided segments based on the set segment range or on the set bending rigidity.