The utility model provides a soda water manufacturing device comprising a sleeve and a bottle cover which are independent from each other, wherein the sleeve comprises a sleeve body and a piston body arranged in the sleeve body the side face of the sleeve body is provided with a first through hole the side face of the piston body is provided with a second through hole the bottle cover is provided with a through hole which is vertically through, and the bottom of the through hole is connected with an injection pipe the upper part of the bottle cover is cooperatively connected with the lower part of the piston body an opening below the sleeve body is cooperatively connected with the lower part of the outer edge of the bottle cover, and the top acting force of the sleeve body is placed to a carbon dioxide shell in the sleeve and the joint of the lower part of the bottle cover and the injection pipe is provided with a one-way valve. According to the embodiment of the utility model, CO2 gas can be injected into a bottle connected with the soda water manufacturing device, the sleeve of the soda water manufacturing device can be picked off, and the bottle can be sealed by the bottle cover, so that the long-term quality guarantee can be realized and when the soda water is manufactured, all the through holes on the sleeve body are closed, and a carbon dioxide shell is stable when being broken through, so that the soda water manufacturing device is extremely high in safety, and the personal injury can be avoided.
