In this study, the performance of lead extraction by dithizone-ionic liquid 1-butyl-3-methylimidazole hexafluorophosphate ([Bmim][PF6]) was researched. Both the extraction and stripping conditions and efficiencies of separating lead ions from water were investigated, respectively. The influences of extraction temperature, complexing agent content, pH value of the liquid phase, the volume ratio of the extraction system to the water phase as well as interference ions on the extraction efficiency were studied. In addition, on the prerequisite of the optimal extraction rate, the screening of the stripping agent was carried out. Furthermore, the influences of the stripping concentration and operating temperature on the stripping efficiency were investigated, and finally, the best stripping conditions were obtained. The research results showed that at the extraction conditions of 35 ℃, pH 6, complexing agent dithizone content of 0.5% (w/v), extraction system and water phase volume ratio of 1/4, the extraction rate of lead ions from water is as high as 98.0 %. In this system, the addition of interference ions has less effect on the extraction rate of Pb2+, and it can be used for the extraction and separation of various metal ions in wastewater. At 35 ℃, using 1mol/L HNO3 as the stripping solution, the above-mentioned loaded extraction system was effectively extracted to a rate of 97.0 %. Finally, the mass transfer efficiencies of the multiple extraction/stripping were investigated. The results showed that the extraction rate of the system still reached 80.0 % after three times of extractions, and the stripping rate was 65.0 %