PROBLEM TO BE SOLVED: To enhance storage density of medical tools while achieving size reduction, and easily take out the medical tool during use time.SOLUTION: A medical use tool sterilization case is formed of a rectangular box for storing plural medical use tools therein, and capable of being stored in a sterilization device in a state that the respective medical use tools are stored. The medical use tool sterilization case comprises: a case body part having a bottom face part and side wall parts surrounding the surrounding of the bottom face part, and storing the plural medical use tools therein in a state that the tools are arranged in parallel in a direction orthogonal to the longitudinal direction a lid part to be attached so as to be opened and closed to the case body part a pair of support wall parts standing on the bottom face part of the case body part and respectively supporting both end parts of the respective medical use tools in the longitudinal direction and a movable piece which is rotatably disposed between a standing state and a fallen state on the case body part on inside of an opposite direction of the pair of support wall parts, and lifting up at least one end part side of holding body parts of the medical use tools which are disposed every other side, out of the plural medical use tools, during standing.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT