Textile industries have initiated consideration of using natural dyes, for dyeing and printing of textile goods, to provide the eco-friendly environment. In this research, dyestuff extraction from the pomegranate peel was applied to dye tencel fabric by the solvent extraction process. Ferrous sulphate and copper sulphate were used as mordant agents and three different mordanting methods as pre-mordanting, simultaneous-mordanting and post-mordanting were executed. The dyeing results were accessed through colour fastness properties in accordance with the ISO standards. The color shade (K/S: 4.72), washing fastness, light and rubbing fastness in all dyed samples were excellent (4-5 grade) through pre-mordanting dyeing method. Ferrous sulphate mordant was more effective than the copper sulphate mordant while samples dyed with pomegranate peel. Perspiration fastness outcomes (4-5 grade) were similar through both mordant agents in all the methods. In general, the best results of fastness were obtained by ferrous sulphate mordant using pre-mordanting method.