Due to the crucial role of mineral resources in China's economic and social development,mining activities are becoming increasingly frequent,leading to an increasing number of abandoned open-pit mines.This problem has become very serious and urgently needs to be solved.Open pit abandoned mines not only have a serious impact on the environment,but also cause problems such as land pollution.Therefore,China needs to attach great importance to the treatment of abandoned open-pit mines,increase treatment efforts,and take effective measures to reduce their negative impact on the environment.In order to better manage abandoned open-pit mines,we first need to identify the source of pollution and propose more targeted treatment plans and safety measures to meet the actual needs of treatment.