The present invention relates to a method for introducing carbon dioxide for preparation of carbonated beverage, which method includes placing a beverage composition having a temperature of 10 to 30° C. in a container, introducing solid or liquid carbon dioxide having a temperature of &minus；78.5 to &minus；5° C. to the beverage composition having a temperature of 10 to 30° C. in the container, and then sealing the container immediately after introduction of the carbon dioxide. The carbonated beverage prepared by the method of introducing carbon dioxide for preparation of carbonated beverage according to the present invention has almost little change in the temperature and the saturated vapor pressure of the carbon dioxide even when a large amount of the beverage is placed in a defined container and incorporated with a higher content of carbon dioxide, thereby almost causing neither creation/overflow of bubbles from the beverage nor evaporation of the carbon dioxide. Further, the method involves sealing the container under almost no saturated vapor pressure, so the beverage can be filled nearly up to the lid of the container. This can reduce the beverage container, such as a bottle or a can, to a size smaller than a usual beverage container size.
