Abstract: The process of M&A with mining enterprises is referring to a number of usufructs such as mining right, prospecting right, land-use right, forestry right, prairie usufruct and water rights. Since usufructs refer to varied legal rules and different government authorities, acquisition can be very inconvenient for the purchaser party, which will also has impact on results of responsible investigation and value assessment of mine districts. Besides, during the process of M&A with mining enterprises, legal problems concerning mine districts environmental protecting shall also be taken into consideration. Based on the current practice of M&A with mining enterprises, this essay tries to do in-depth analysis of disposure of usufructs during process of M&A with mining enterprises and relevant environmental-protecting problems so as to be of some help to people who engaged in this field.