The present utility model provides a carbonated water manufacturing device, including a sleeve and a bottle cap which are mutually independent, wherein the sleeve includes a sleeve body and a plug body inside the sleeve the sleeve body and the plug body are provided with a first through-hole and a second through-hole at their side surfaces, respectively the bottle cap is provided with a perforated through-hole whose bottom is connected with an injection tube the upper part of the bottle cap is fittingly connected with the lower part of the plug part the opening at the lower part of the sleeve body is fittingly connected with the lower part of the outer edge of the bottle cap, and the top of the sleeve body acts on the carbon dioxide housing body in the sleeve body the connection of the lower part of the bottle cap and the injection tube is provided with a check valve. By implementing the embodiments of the present utility model, when the sleeve of the carbonated water manufacturing device is taken away after CO2 is injected into the bottle connected with the carbonated water manufacturing device, the bottle cap can still seal the bottle, thus realizing long-term storage when manufacturing carbonated water, since the through-holes on the sleeve body are closed and the carbon dioxide housing body is stable when being penetrated, the carbonated water manufacturing device is very secure and will not cause any personal injury.一種汽水製造裝置,包括:一相互獨立套筒、一瓶蓋,該套筒係包括一筒體和一內置於其中的塞體、該筒體的側面開設有一第一通孔、該塞體的側面開設有一第二通孔、該瓶蓋設置有一上下貫通的通孔,該通孔底部連接一注射管,該瓶蓋的上部與該塞體的下部配合連接,該筒體的下方開口與該瓶蓋的外沿下部配合連接,該筒體頂部作用力在置於該套筒中的二氧化碳該殼體上,該瓶蓋的下部與該注射管連接處設置一單向閥。