EP Conveyor belt, whose tension resistant body is canvas woven by polyester in warp and polyamide in weft, the belts has the characteristics of low elongation in warp and good throughability in weft, good water resistance, good wet strenth, no mould, suitable for medium, long-distance and heavy-load transportation of materials. Because of the high initial modulus of polyester, the belts can choose a relative low safety factor.