本文根据灰色系统理论分别建立了涤纶长丝滤布经、纬向残留收缩率随热处理温度变化的有残差识别的ＧＭ（１，１）模型，并进行了精度检验，检测精度为一级，为涤纶长丝滤布的热定型工艺提供了理论根据 Based on the gray system theory, GM (1,1) model with residual error of the residual shrinkage in the warp and weft direction of the polyester filament filter cloth was set up and the precision was tested. The accuracy of the test was first order, It provides a theoretical basis for the heat-setting process of polyester filament filter cloth