Abstract: Adopted spectral photometer,mensurated adsorbability of the Bentonite and modified Bentonite to the industry organism dye and experimentized research. Adsorbability of the Bentonite and modified Bentonite to the industry organism dye very with sort of the industry organism dye.the color of dye is dark more and The adsorbability of the Bentonite to dye is less.Adsorbability of modified Bentonite is more better than Bentonite.