The invention discloses a power grid base station preliminary locating method based on a TD-LTE230 network, including the following steps: a computer selects target place map information, and divides the target place map into grids; the computer acquires the number of power service terminals in each unit grid, and calculates the flow density in each unit grid according to the number of terminals; the computer acquires coordinate information of all base stations in the target place map; a scheme meeting the condition that each base station covers all unit grids within a certain range and a plurality of base stations combined can cover all the grids is an effective scheme, and the computer acquires all effective schemes; and the computer calculates the efficiency of each effective scheme, sorts the effective schemes according to efficiency from high to low, and selects the effective scheme with the highest efficiency, thus competing power grid base station preliminary locating based on a TD-LTE230 network. The power grid base station preliminary locating method based on a TD-LTE230 network can provide a more intelligent power grid base station locating scheme according to the actual demand, and the locating scheme is of high stability.