PURPOSE: To prevent the damage of shelled egg with a shock during the transportation, etc. at a low packaging cost, by keeping boiled and shelled quail eggs in a coagulated agar in a state of gel, and enclosing and packaging the eggs in the agar with a resin film.

CONSTITUTION: Boiled and shelled quail eggs 1 and an agar liquid 2 are prepared. A suitable number of the shelled eggs 1 are then placed in a packaging bag 3 with a top opening 5 made of a vinyl film, and the agar liquid 2 which is not still coagulated is filled in the bag 3 almost full. The top opening 5 of the bag 3 is then sealed at parts 4 not to make the air remain therein. The sealed bag is then sterilized under heating for a given time and then quickly cooled to coagulate the agar liquid 2 and keep the boiled and shelled quail eggs 1 in the agar 2 coagulated in a state of gel. Thus, a packaged food containing the eggs 1 enclosed and packaged with the resin film 3 is obtained.