The present work aims to study the Green malachite dye and Rhodamine-B sorption on olives pomace, solid waste of olive oil industry product. Batch experiments were carried out to determine the effect of various factors such as adsorbent dose (w), initial pH and contact time (t) on adsorption process. Kinetic data were well described by the pseudo second-order model. Freundlich isotherms described the process of dyestuffs sorption on olive pomace. Thermodynamic parameters revealed that the sorption process nature was endothermic.