There are provided: a preservative composition and a preservation liquid which can improve the shelf life of fruit and vegetables and which are safer to the human body； and fruit and vegetables treated with the preservation liquid. The present invention relates to a preservative composition for fruit and vegetables, the preservative composition containing an organic acid and/or a salt thereof, and at least one selected from the group consisting of glucosamine, glucosamine derivatives, chitin oligosaccharides, chitosan oligosaccharides, and salts thereof. Moreover, the present invention relates to a preservation liquid for fruit and vegetables, the preservation liquid containing the preservative composition and a liquid medium. Further, the present invention relates to fruit and vegetables treated with the preservation liquid.
