Abstract: The characteristics of the decentralized wastewater discharge of Liaohe Conversation Area were analyzed, the issue of promoting the decentralized wastewater treatment technologies such as constructed wetland, stabilization pond, power-free buried wastewater treatment system, and integrated wastewater treatment equipment was discussed. The existing problems of the decentralized wastewater treatment facilities in the operation were analyzed and the countermeasures put forward. It was pointed out that strengthening management of decentralized wastewater treatment facilities and combing the wastewater treatment with ecology, energy saving and landscape should be the future development direction of the decentralized wastewater treatment systems.