According to one embodiment of the present invention, a method for producing germanium ionized water includes a process of introducing thorium dioxide (ThO2) or thorium ore powder into water to produce a radiation-emitting solution, and a reaction vessel containing germanium dioxide (GeO2) powder. Mixing water and immersing the reaction vessel so as to be immersed in the radiation emitting solution; and heating the radiation emitting solution.本発明の一実施例によるゲルマニウムイオン水の製造方法は、二酸化トリウム(ThO2)又はトリウム鉱石の粉末を水に投入して放射線放出溶液を製造する過程と、反応容器に二酸化ゲルマニウム(GeO2)粉末と水を混合し、前記反応容器を前記放射線放出溶液に浸されるように浸漬させる過程と、前記放射線放出溶液を加熱する過程と、を含む。