The oil extracted by the low temperature twin-screw press is healthy. The structure of the low temperature twin-screw press is big and complicated, so it is not suitable for the rural market. In order to improve the quality of the oil for the peasants, a new small low temperature twin-screw press is improved and designed based on the large and media presses, which was composed of the srews, pressing and shearing rings. The shearing rings were new elements, which could shear the oilseed, increase the pressure and speed up the extrusion of the oil. The number and location of the shearing rings were adjusted to different structure of pressing bolts for different oil to receive the most oil. The result of the test showed that the oil extraction rate of the new small press was not lower than the common pres, and the effect of the oil expression was good.