Abstract: Comprehensive recovery of valuable elements lead and copper in the lead leaching solution was made by precipitation method.Sedimentation effects of different precipitants on Pb2+ and Cu2+ were comparatively studied.The results showed that sodium carbonate as a precipitating agent had the best effect；the effects of temperature，pH，and time on the sedimentation effect were investigated by single factor experiments.The optimum conditions were as follows：the solution pH was 6 and the reaction time was 60 min at normal temperature.Under the optimum conditions，the sedimentation rates of lead and copper reached 99.99% and 97.50%，respectively.Thus，the separation and recovery of valuable elements in the lead leaching solution was achieved effectively.

Key words: lead leaching solution, precipitation method, lead, copper, comprehensive recovery