PROBLEM TO BE SOLVED: To provide a stent inspection device and a stent inspection method capable of inspecting a stent three-dimensionally and simply for whether a flare shape of a stent with the flare shape is a desired shape or not.SOLUTION: A stent inspection device includes: (A) an insulation support body including a support part capable of supporting a straight pipe part of a stent, an enlarged part having an outer shape corresponding to a reference inner peripheral shape of a flare part of the stent, and a peripheral part arranged on an outer side of an edge on an enlarged side of the enlarged part and capable of contacting the flare part and (B) an inspection circuit including a conductive first connection part arranged in at least a part of the edge on the enlarged side of the enlarged part and the peripheral part, a second connection part arranged while separated from the first connection part and capable of being connected to the stent electrically when the stent is installed on the support body, and a conduction inspection part inspecting conduction between the first connection part and the second connection part when the stent is installed on the support body.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT