Phospholipid removal from crude soybean and sunflower-seed oil by membrane filtration was studied in this paper. A laboratory scale membrane apparatus were designed and built for this research at our department. Oil filtrations were carried out at temperature 40-60degreesC, pressure 2-5 bar and velocity of flow 0.3-0.4 L/m(3). After oil filtration the system and the membrane were cleaned with organic solvents. The SP015A membrane had constant retention on phospholipids (70-77%). With adding some water to the oil we were able to improve the retention to similar to97%.