The invention discloses an environmental protection and energy conservation oriented dynamic cell dormancy method, and belongs to the technical field of mobile communication. The environmental protection and energy conservation oriented dynamic cell dormancy method includes setting communication time into a specific number of time slots; calculating the quantity of user and a user distribution state of a cell corresponding to each base station at a starting moment of each time slot; calculating an index value of the cell corresponding to each base station; and arranging the obtained index values from small to large, and enabling the base station corresponding to the largest index value to enter a dormancy state at the starting moment of a next time slot. The base station is selected and enabled to enter the dormancy state for the next time slot according to the quantities of the users in various cells in the current time slot, positions of the users and state transition probability, and accordingly energy consumption of a system is reduced.