An oil field perforation charge cover belongs to petroleum mechanical part; the charge cover made of powder metallurgy materials consists of an upper cylinder sleeve and a lower taper sleeve cover; the internal diameter of the large tapered face end of the taper sleeve cover is 4.7 millimeters and the middle part of the wall thickness is 5.5 millimeters and the depth between the upper and lower ends of the taper is 3.5 millimeters; the external cylinder face at the upper end of the cylinder sleeve is equipped with a circumstance chamfer of 10 degrees; the charge cover has a simple structure and scientific rational size choice; being made of multi-hole powder metallurgy materials, the utility model has an excellent broken performance after explosion; in this way, the oil pipeline and the well will not be blocked; the cost is low and the utility model plays an active role in prolonging the service life of the oil well and increasing the crude oil output.