Cangersu is one of antifungal activity material from Xanthium sibiricum. It has obvious antifungal effect for Botrytis cinerea Pers., Cladosporium cucumerinum Ell.et Arthur. After the antifungal activity components separated from Xanthium sibiricum, we had obtained the best separation method . Study on the filtration of preparation and assistant to identify the best processing formula and technology. According on EC processing , we had acquired 30% Cangersu emulsifiable concentrate ( EC ) and evaluated the ...