The friction sheet for electrostatic dust collector consists of three layers of combined material, including the base layer of steel plate, the middle layer of copper alloy skeleton and the upper antifriction layer of tetrafluoroethylene. It is manufactured through mechanical forming of the base steel plate layer; electroplating copper and spraying and sintering copper alloy to form the middle alloy skeleton layer; painting mixed tetrafluoroethylene liquid and stoving, pressing surface to form and curing to form the mixed antifriction tetrafluorethylene layer. It has the features of small volume, light weight, high antiwear property, high anticorrosive proerty and long service life.