Abstract: Rubbing the polyester fiber and the polyamide fiber,there are two different static charges producing which are able to counteract with each other.Based on this knowledge and the contrast with other methods of anti static electricity,a new type anti static electricity filter fabric which is used in the petroleum industry is designed by the interweave process of these fibers.According to the standard of GB/T 12703—91,all of the twenty one specimens were tested by the measure in density of electric charge.And the superior project was obtained by the recursive analytic method of two equation matrixes.