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The separation and extraction of copper from waste water solutions by the liquid surfactant membrane process using LIX84 as an extractant and Span 80 as a surfactant were investigated . In extraction, the extraction rate of copper was greatly accelerated by the presence of sodium acetate and with the increase of pH in the aqueous feed solution. The optimum concentrations of LIX84 and Span 80 in the membrane phase were 7~10 vol. % and 2.5~3 vol. %, respectively. Experiments also showed that the concentration ratio of copper was greatly enhanced with the decrease of the ratio of Ve and Vw and with the decreasing of A/O ratio. After the extraction process, the concentration of copper in the raffinate solution reduced to 1~2 ppm, and the concentration of copper in the internal aqueous solution increased to 20 g/l.