The invention discloses a foliar medical fertilizer for Red Sun kiwifruits and a method for preparing the foliar medical fertilizer. The foliar medical fertilizer comprises, by weight, 1-1.5 parts oftetramycin, 1-1.5 parts of matrine, 8-10 parts of chitosan, 2-4 parts of amino acid, 0.01-0.03 part of methyl jasmonate, 20-30 parts of ammonium bicarbonate, 30-40 parts of potassium dihydrogen phosphate, 30-40 parts of potassium chloride, 30-50 parts of calcium chloride, 20-30 parts of zinc sulfate, 20-30 parts of magnesium sulfate, 20-30 parts of manganese sulfate, 20-30 parts of ferrous sulfate, 20-30 parts of sodium borate, 5-10 parts of sodium selenite, 20-30 parts of ammonium molybdate and 1-2 parts of glacial acetic acid. The foliar medical fertilizer and the method have the advantagesthat inducers of the foliar medical fertilizer comprise biogenic pesticides, biogenic inductive disease-resistant substances, major elements and trace elements, accordingly, the economic benefits of the Red Sun kiwifruits can be effectively increased, and the nutritional and flavor quality and the storage performance of the Red Sun kiwifruits can be effectively improved.