Waste water generated from the textile industry consists of non- biodegradable complex compounds such as dye. This waste water can be toxic to the living organism. Hence, the treatment of the waste water consisting dye is very important before it is released streams, lake, river etc. Among the several methods of dye waste water treatment such as adsorption, filtration, bio adsorption and photo degradation, Phytoremediation is suitable because it is naturally occurring process on which micro-organism or plant transforms or immobilize the complex compounds such as dye. Azolla Pinnata, phytoremediation plant can be used for extraction of the dye and complex compound from waste water.