The washing machine cleans the olives from sand, soil, etc. It is designed to clean the materials and leaves and branches collected during harvest without causing damage. It consists of three parts: water tank, vibration screen 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 separator designed to clean light parts such as leaves and branches that remain under the olives carried to the washing machine by the conveyor belt and cannot be cleaned, and a distributor belt to regulate the flow of olives. The olives are poured into the water-filled chamber, washed with pressurized water, and moved to the vibration sieve to float and filter the water. Other substances in the olives settle to the bottom of the water and are thrown out with a spiral. In this way, water is less polluted and can circulate for a longer time.