Fuente: WIPO "organic farming" The present invention belongs to the field of re-compounded organic farm chemical, and is especially organic farm chemical for controlling tobacco aphid as main pest of tobacco and tobacco rust as main disease of tobacco. The re-compounded organic farm chemical is prepared through mixing Admire and Huihening in the volume concentration ratio of 1 to 30-35. The lab experiment and field application proves the excellent tobacco aphid and tobacco rust preventing and controlling effect of the re-compounded organic farm chemical. The present invention has high farm chemical using efficiency, lowered use amount, low cost and environment friendship.