Methyle β cyclodextrin was simply synthesized, and the impacts on the solubilization of methyl parathion and carbofuran were investigated. The result indicated that methyl β cyclodextrin can significantly increase the solubility of parathion methyl and carbofuran. The concentration of parathion methyl and carbofuran respectively increased 21.91 and 4.01 times with 20?g/L methyl β cyclodextrin. The solubility is linear with concentration of methyl β cyclodextrin, and relates the matching degree between hydrophobicness molecular geom...