The invention discloses a spring summer rape bactericide, which comprises following components in parts by weight: 10 to 20 parts of gibberellin, 5 to 10 parts of flavone, 1 to 3 parts of xanthophyll,6 to 12 parts of thiediazole copper, 8 to 14 parts of glycol, 10 to 12 parts of isopropanol, 3 to 5 parts of glycerol, 5 to 9 parts of sodium stearyl lactate, 3 to 5 parts of calcium stearyl lactate,2 to 4 parts of diacetyl glyceride, and 3 to 5 parts of glutaraldehyde. The bactericide can effectively kill pathogens in a rape field in summer, reduces the happening rate of large scale diseases, and can remove pathogenic bacteria from affected plants; the added auxin can adjust the growth of plants, and the death rate of plants is reduced.