Abstract: Arsenic is one of the most common and harmful substances in environmental pollution, Its pollution of water resources is a global environmental problem, a serious threat to human health, so the treatment of arsenic containing wastewater has been widespread concern.The principle, characteristics and application status of the main treatment methods of arsenic containing wastewater in recent years were summarized. The adsorption and biological methods were mainly elaborated, and their advantages and commonalities were analyzed, so as to provide technical support and help in the actual process.