Abstract: The graded coarse-grained tailings from the ore-dressing plant in Hedong mining area of Canzhuang Gold Mine was backfilled into the goaf,and the remaining overflow fine tailings are all stored into the tailing pond.In view of the fact that the tailing pond in Hedong mining area has been basically saturated,and the drainage volume in the shaft is great and the mining recovery rate is low,the optimization and modification of the cemented fine tailings backfilling process are carried out.The paper details the modification process of filling process.After the cemented fine tailings backfilling process is put into operation,the discharge of solid waste from mines is greatly reduced,realizing the mine production free of tailings,fundamentally solving the inability to construct tailings pond,improving the mining recovery rate,creating economic benefits of 4.7 million yuan/a and indicating good results.The process can be referred to by similar mines.