Washing machine has designed for cleaning olives without damage from sand, soil etc. materials and the leaves and twigs that have been collected during the harvest. It consists of three parts: water tank, vibration sieve and washing chamber. All equipment is made of stainless steel. It is controlled from the control panel of the olive preparation unit. It has a second leaf remover designed to clean the light parts such as leaves and twigs that remain under the olives that are transported to the washing machine by the conveyor belt and cannot be cleaned, and it has a distributive belt to regulate the flow of olives. The olives are poured into the water-filled chamber and washed with pressurized water, and they float to the vibration sieve to filter the water. Other substances in the olive settle to the bottom of the water and are thrown out with a screw. Thus, the water is less polluted and can circulate for a long time.