Abstract: Lead-zinc ore in tin poly-metallic ore of Dachang veinlet belt fire area was seriously oxide and complex，easy to become mud，and very difficult to recovering fine particle.For the realization of lead and zinc minerals recycling efficiently，low cost and light pollution，preferential flotation principle flow sequence was used.With ZnSO4 and Na2SO3 as inhibitor flocculation roughing-dispersion concentrating process was used for lead recycling.In the closed circuit test，the lead antimony concentrate grade was 24.58% and 20.91% respectively，the recovery rate was 52.05% and 59.27% respectively.The zinc grade in zinc concentrate was 44.24%，the recovery rate was 83.39%，and the sulfur grade was 31.28%，the recovery rate was 49.66%.The study meets the requirement of recovery of lead，antimony，zinc and sulfur.The total loss of tin is 8.89%，which contribute a lot to the next recovery.

Key words: Veinlet belt fire ore, Micro-granular lead-zinc mine, Flocculation roughing, Scattered selection