This invention has provided one kind of agricultural chemical biology decompound and its preparation method, it may be medicinal powder, pellet, tablet, liquid, young paste, it is mainly prepared by biological enzyme, stabilizer, adhesive, tax medicinal preparation, chelating agent, active agent through certain craft preparation, it may effective dissolve and decompose fruit vegetables surface and agricultural chemicals in the watery solution in a shorter time, it is one kind of home used and industrial used biological health preparation, which can be applied conveniently and security, and it is green environmental protection.