The efficacy of an antitumor aqueous solution that can be generated by plasma irradiation varies according to the plasma irradiation conditions, and more optimal plasma irradiation conditions depend on the type of tumor. Therefore, the present invention addresses the problem of providing an antitumor aqueous solution manufacturing device with which it is possible to manufacture an antitumor aqueous solution having an appropriate antitumor effect. This antitumor aqueous solution manufacturing device (10) for resolving the abovementioned problem manufactures an antitumor aqueous solution having an antitumor effect, wherein the antitumor aqueous solution manufacturing device (10) has: a stage (26) for holding a raw material solution in which the raw material of the antitumor aqueous solution is dissolved a plasma generation device (20) for generating plasma to be irradiated on the raw material solution held in the stage (26) and a control device (38) having an information acquisition device (176) for acquiring control data for controlling the devices, and controlling the plasma generation device (20), the control device (38) having a storage device (175) for storing, among the acquired control data, control data that exerts a large influence on the effect of the manufactured antitumor aqueous solution.Lefficacité dune solution aqueuse antitumorale qui peut être générée par projection de plasma varie en fonction des conditions de projection de plasma, et des conditions plus optimales de projection de plasma dépendent du type de tumeur. Par conséquent, la présente invention aborde le problème de réalisation dun dispositif de fabrication de solution aqueuse antitumorale grâce auquel il est possible de fabriquer une solution aqueuse antitumorale ayant un effet antitumoral approprié. Ce dispositif de fabrication de solution aqueuse antitumorale (10) pour la résolution du problème susmentionné fabrique une solution aqueuse antitumorale ayant un effet antitumoral, le disposit
