Nanotechnology is one of the most advanced and widely used technologies today. The application of nanoscale photocatalytic antiseptic and insect proof materials, nanoscale fresh-keeping materials, microcapsule spraying materials and new intelligent packaging materials were enumerated. The research progress and application of nanotechnology in the field of fruit and vegetable storage, grain storage and food package were introduced. The application of nanomaterials in food storage was prospected.