The invention relates to a production method for Bacillus amyloliquefaciens with a property of anti-ultraviolet activity. Primarily, strains of Bacillus amyloliquefaciens are used as initial inoculums. The initial inoculums are put in a shake flask, and then nutrient broths with carbon source and nitrogen source are added therein for proceeding culture so as to obtain the inoculums in batch cultures. Continuously, the inoculums is transferred in the stirring liquid fermentation tank and mixed with the nutrient broths including carbon source, nitrogen source and anti-ultraviolet additives for proceeding second culture. Thus a fermentation product with the function of anti-ultraviolet activity can be obtained. Accordingly, the fermentation products of the invention can be used in the composition of biological pesticides to inhibit the activegrowth of fungi and bacteria in the crops. Meanwhile, they can also be used as biological control agents by means of combining with fungicides, pesticides, herbicides and bacillus thuringiensis.
