Abstract: Wastewater, which are produced in the mining, beneficiation and smelting process of arsenic-bearing ores and produced after the ores treatment using arsenic-containing flotation agents, are collectively referred to as arsenic-containing wastewater. With the strengthening of environmental protection policy for mines in China, the purification of arsenic-containing wastewater from mining and metallurgy has become the basic requirement of green mine construction. In this paper, the sources of arsenic-containing wastewater of mining and smelting are summarized, and the purification and treatment technologies of arsenic-containing wastewater from mining and smelting are described in detail, such as chemical precipitation method, electrochemical method, adsorption method and biological method, etc., and the prospect is speculated.