Papermaking wastewater is the key pollution in papermaking enterprises,physicochemical methods are still the preferred processes of papermaking wastewater treatmengt.With the voice of environment protection getting higher and higher,stricter standard of reuse rate of white water and comprehensive waste water is inereasing in papermaking industry.In this paper,combined with the new requirements of Zhejiang region,the current pretreatment and deep treatment processes are reviewed,and it demonstrates the necessity and feasibility of papermaking wastewater deep treatment by examples study.