The invention discloses a compound Schima superba Gardn.et Champ rice blast resistant preparation and a preparation method. The preparation adopts the leaves of Schima superba Gardn.et Champ and synergist (the leaves of Camellia oleifera Abel or the fruit of Sapindus mulorossi Gaertn) as raw materials. After crushing, the leaves of Schima superba Gardn.et Champ and the synergist X are mixed by the weight proportion of 3 portions of the leaves of Schima superba Gardn.et Champ and 4-20 portions of the leaves of Camellia oleifera Abel X or 1.6-40 portions of the fruit of Sapindus mulorossi Gaertn X. The mixture then is extracted by 80% of ethanol. Exacting solution is extracted by petroleum ether, ethyl acetate one after another. Raffinate is made into the preparation by adding pesticide auxiliary agents (alkyl polyoxyethylene ether sulphonates or lauryl sodium sulphonate), wherein the weight ratio of the mixed extraction of the Schima superba Gardn.et Champ leaves and the synergist is 15 percent- 25 percent. The invention has the advantages of strong anti-pathogenic activity to the rise blast, environmental protection, low toxicity, and that pesticide resistance is not easy to be generated, the comprehensive utilization of resources is convenient and the invention is suitable for scale production.