Jilin province is the main ginseng production area, the increase or decrease of its production will di-rectly affect countrywide ginseng products processing, so it is very essential for ginseng-cultivated soil research inthe producing area. The research results showed that after many years the environmental quality of ginseng-plantedsoil is tend to decline. Soil was affected by the environment more and more seriously, especially soil acidificationwas increasingly prominent problem. So soil acidification and improvement in old ginseng planting were analyzed inorder to provide scientific theory basis for the management of soil acidification.