The invention provides a defrosting, deodorizing, bacteria-resisting, and fresh-keeping material and preparation technology thereof, and relates to the technical field of air purification, bacteria resistance, and fresh maintenance of a refrigerator. A material with long-lasting humidity-controlling, defrosting, deodorizing, bacteria-resisting, and fresh-keeping effects is arranged on the inner walls of a refrigerator and a freezer. The material prepared in the invention plays defrosting, deodorizing, bacteria-resisting, and fresh-keeping effects on inner space of the refrigerator and the freezer, decomposes and removes strange and odor gases, such as hydrogen sulfide, methyl mercaptan, ethyl mercaptan, trimethylamine, and ethylene, in the air or in the refrigerator or the freezer, and inhibits metabolism of fruits and vegetables, thereby reducing the activity of several main enzymes in the fruits and vegetables, and preventing ripening and deterioration of the fruits and vegetables. The conservation time of the fruits and vegetables is prolonged; the purpose of fresh-keeping is achieved; and freshness and taste of the fruits and vegetables are improved.