Abstract: Ajialongwa gold mine is located in the Qinghai-tibet plateau.The area of vegetation occupied and destroyed by the gold mine are more than 295 520 square meters, so the ecological environment of mining area need to restore.In view of the present production and land suitability, and based on the field investigation and sampling analysis, some methods are put forwards, such as neutralizing the solidified tailing slag with lime, improving surrounding rock by using sludge, reclamation at the original soil, and vegetation restoration by planting the qualified grass.Through the above methods, the healthy ecosystem and safety ecological pattern are realized.

Key words: Mining of high altitude, Vegetation restoration, Sludge-improved soil