For reducing time required for sterilizing a container by hydrogen peroxide, mitigating a cost required therefore, simplifying a sterilizing apparatus, reducing space for installing such apparatus, and mitigating load to the environment, a method for sterilizing a container is provided according to which hydrogen peroxide aqueous solution, air at the normal temperature and hot air are simultaneously injected into a container whereby the hydrogen peroxide aqueous solution which has been turned to minute droplets by the air at the normal temperature is instantly gasified.
