The invention discloses a UPFC address practical method, which utilizes power grid initial power flow to calculate the load rate of each line, normalizes the load rate to be used as the weight coefficient of each branch, calculates the addressing adaptability index of each branch based on a branch breaking distribution factor, and finally determines the recommended installation point of a UPFC according to index values. The method can calculate the addressing adaptability index of each branch only by utilizing power grid initial power flow and network topological structure parameters, and effectively screen the recommended installation branch of the UPFC according to index values. In the method, the selection of weight coefficients represents the priority of a heavy-loaded line; in addition, the method has the advantages of small computational complexity and fast computational speed, and can provide a reference for the feasibility investigation and preliminary design of the application of an FACTS device in real power grid.