The present invention relates to an ozone dissolving apparatus using microbubbles for improving the quality of water by generating ozone water composed of fine bubbles of a strong alkaline component. The ozone dissolving apparatus comprises: The ozone dissolving apparatus according to claim 1, wherein the ozone dissolving apparatus comprises: an ozone dissolving apparatus having an ozone dissolving apparatus and an ozone dissolving apparatus, A body； A plurality of outlets formed on the front and bottom surfaces of the body； A cover detachably coupled to a rear surface of the body by rotating the handle； And an inlet pipe connected to the venturi pipe so that ozone supplied to the ozone generator can be accelerated and introduced into the ozone generator, wherein the bubble generating ball has a plurality of bubble holes on its outer side, A plurality of alkali balls made of powder are inserted so that the ozonated water introduced at a high pressure rapidly oscillates in the inside of the body to form a vortex and is self-decomposed by an alkali ball to generate oh-radicals, (Advanced Oxidation Process) method, and then discharged into fine bubbles through the bubble holes. The ozone dissolution apparatus using the fine bubbles is proposed. Therefore, according to the present invention, ozone water is generated and microbubbles are generated by a simple constitution and action, so that a more economical effect is obtained and maintenance is easier. In addition, ozone water having a plurality of bubbles-generating balls and alkali bubbles formed of fine bubbles of a strong alkali component is generated and supplied to an aquarium so that acidic water can be converted into an alkali component and the organic matter which is difficult to decompose can be quickly decomposed and sterilized .본 발명은 강알칼리 성분의 미세 기포로 이루어진 오존수를 생성하여 수질을 개선하는 미세 기포를 이용한 오존 용해장치에 관한 것으로, 펌프로 유입된 외부의 공기를 오존발생장치의 방전관에 공급하여 오존을 생성하고, 생성된 오존을 물공급호스에 연결된 벤추리관에 전달하여 가속된 오존수를 생성하는 오존용해장치에 있어서, 상기 오존용해
