Spirogyra sp biomass used for bioremediation of malachite green dye from aqueous solution. Biosorption process has been investigated as a function of pH, contact time and equilibrium. The adsorption is strongly dependent on pH of the medium where the removal efficiency increases as the pH turns to alkaline range. This reveals the basic nature of the Malachite green and acidic nature of the Spirogyra sp biomass. Langmuir model gave the best fitting to the biosorption data. Bioremediation results shows that Spirogyra sp has accumulated varying amount of malachite green dye intracellularly and could be employed for the removal of dyes from spent industrial effluents before discharging it into the environment.