Abstract: The rare earth minerals in Baotou Steel rare earth tailings have great value.The yield of -74 μm of tailings is 77.73%.REO content of tailings is 5.97%.The main rare earth minerals are bastnaesite and monazite，the content of which are 4.40% and 3.80% respectively.Reconcentration by flotation experiments on the tailings were carried out.The results indicated that，under conditions of the grinding size of 95% passing 74 μm，pulp concentration of 40% and pulp temperature at 30 ℃，NaOH dosage of 3 000 g/t，silicate sodium dosage of 2 000 g/t，H205+LD dosage of 400+300 g/t，rare earth concentrate was obtained by using process of one roughing，three cleaning，one scavenging，and middles back to the flowsheet in turn.The final concentrate REO grade is 45.08% and recovery is 75.27%.

Key words: Rare earth tailing, Flotation, Recovery