The study compared three processes of characteristics of Na2S precipitation, Fenton oxidation and coagulation. The results show that Na2S precipitation has the best treatment effect and convenient operation, but the processing cost is slightly higher. Fenton oxidation treatment effect is good, whereas the cost is high and more complicated process. Coagulation treatment is the lowest-cost and easy to operate, however the treatment effect is the worst. The research results have realistic instruct significance for the formulate process scheme of copper-complexes wastewater treatment.