【正文】
s been seriously hampered. Searching for a new environmental and energysaving pulping technology is an important strategic issue placed in pulp and paper industry of china. Displacement digester systems, which was developed in 1980, is a highefficiency and energyconserving pulping technology. Because of its good environmental and economic benefits, displacement digester systems has gradually became an important development direction of pulp on mechanism introduction of displacement digester systems, aiming at the difficulty of judging pulp cooking endpoint, the work in this paper was expanded from following , soft measurement method on cooking endpoint of displacement digester systems has been proposed in the article. The cooking endpoint, which is the basis for time, has a direct impact on pulp quality and energy consumption. At present, more scientific and reliable method for judging coo