Solubility of waste polystyrene plastic into solvent is one of the cost effective and easier process for managing the polystyrene plastic waste. In this work solubility of waste transparent polystyrene plastic waste into aliphatic hydrocarbon solvent (hexane) has been determined. Experimental results have shown to develop a white material. The solubility of waste transparent polystyrene plastic sample was investigated through Fourier transform infrared spectroscopy, optical microscopy, Scanning electron microscopy , measure the contact angle and differential scanning calorimetry. Therefore utilization of transparent polystyrene plastic waste is possible and solubility technique approach is an easy method for utilization of waste polystyrene plastic