The utility model relates to a novel cubic apparatus press hydraulic oil filters device, including the shaft type casing, the casing constitute by oil inlet, fillter section and oil -out, the oil inlet be equipped with the internal thread, the oil -out is equipped with the external screw thread, the casing internal diameter of fillter section is greater than the casing internal diameter of oil inlet and oil -out, the inside of fillter section is equipped with the inner ring, the inner ring be the magnetic ring, the inner ring lower extreme seals with the oil inlet to be connected, the inner ring upper end be the opening, the formation clamp overlaps between the casing of inner ring and fillter section, the oil -out be equipped with the filter screen, the fillter section be equipped with the oar body that the axial distributes, the enough free rotations of oar physical stamina. The filtration can be assisted to hydraulic oil to this device, reduces the impurity that gets into pump head and valve member, avoid wearing and tearing, and extension equipment life, and the device dismantles and washs the convenience.