Abstract: The normal production and operation activities of mines will inevitably create certain mine geological environmental problems. In order to fully implement the thoughts on ecological civilization and firmly establish the concept of “green water and green mountains are golden mountains and silver mountains”, the research should be based on local conditions and take multiple measures to carry out the restoration of the geological environment of abandoned open-pit mines, in accordance with the overall requirements of restoring the ecology and taking into account the landscape. According to the relevant specifications and requirements of mine geological environmental protection and restoration, the authors have taken an abandoned open-pit mine in Wenchuan as an example to introduce the factors affecting the mine geological environment from the perspective of the mine environment. Besides, the geological environment impact assessment of the stability of the stope slope, the site and the waste slag slope, the destruction of topography and landscape was also evaluated, and three basic mine geological environmental protection and restoration prevention areas were divided, namely the key, secondary and general. The results show that the stope slope and the waste slag slope are stable, the stability of the site is poor, and the impact of topography and landscape and the degree of damage are moderate. The mine geological environmental protection and restoration treatment in this area can be divided into general prevention and treatment area and more serious prevention and treatment area. The general prevention and treatment area is about 554 m², where there were no mining geological disasters induced by activities, no residents in the affected area, no threatened objects, no leakage of surface water in the mining area and surrounding areas, and the impact of mining activities on the water and soil environment is small without effect on the living water supply in the mining area and surrounding areas. The more serious prevention and treatment area is 186 m², where the possibility of geological disasters in the mining area and the affected area is small, and the topography and landscape impact and damage are serious. According to the evaluation results, the authors in this paper have put forward the repair suggestions such as “pumice removal + removal of construction waste, block stone + vegetation reconstruction”, which provide important technical basis for the green mining and geological environmental protection in the same type of mines.