Abstract: Through an analysis on the flotation of high-grade scheelite in Baoshan dressing plant of Dangping tungsten mine, some technological improvements of readjusting the reagents by adding the collector of paraffin soap oxide and decreasing the expense of water glass depressant were proposed.The recovery ratio and quality of scheelite were enhanced greatly.The recovery ratio of scheelite was 5.74% higher in 1999 than 1998, and get a good economic profits.