简要介绍了滤纸法测吸力的原理和方法以及国外滤纸率定曲线的研究成果。应用压力膜吸力仪进行了国产滤纸的率定实验 ,得到了国产滤纸脱湿过程的率定曲线和脱湿—吸湿过程率定曲线 ,分析了该率定曲线的性状 ,与国外滤纸的成果进行了比较 ,得出了有关的初步结论 The principle and method of measuring suction by filter paper and the research results of filter rate curve abroad are briefly introduced. The experiment of pressure filtration of domestic filter paper was carried out by using pressure membrane suction meter. The calibration curve of the domestic filter paper desorption process and the calibration curve of the desorption-moisture absorption process were obtained. The performance of the calibration curve was analyzed. In comparison, the preliminary conclusions are drawn