Abstract: With the largest open-air phosphate mining enterprise-Yunnan Phosphate Chemical Group Co.，LTD（YPCG) as engineering background，all phosphate mines under YPCG are located in the surrounding area of plateau lake Dianchi with great ecological pressure on the environment.It is essential for enterprises to restore and rehabilitate the ecological system functions of the ecological fragile zone in the mining area.With four phosphate mines of Kunyang，Jinning，Jianshan and Haikou under YPCG as research target，environmental protection as the basic point in the green mine construction，key technologies of land reclamation and ecological restoration for phosphate mines are investigated，based on two links of development and utilization of phosphate resources including the mining and land reclamation of open-air phosphate mines（taking YPCG for instance).Besides，these key ecological restoration technologies are integrated and demonstrated in YPCG green mine construction process.Related research achievements could provide technical or theoretical guidance and demonstration projects for the green mine construction of phosphate industry in China，which contributes important practical and instructive significance to promoting green mine construction. Open-pit phosphate mine|Environmental protection|Land reclamation|Ecological restoration