The invention discloses a distributed power flow controller configuration optimization method comprising the following steps: collecting the information of a power system; building a first-layer optimization function according to the constraint of the total number of relax distributed power flow controllers installed, and calculating the maximum amount of new energy consumed; and building a second-layer optimization function with the maximum amount of new energy consumed as an additional constraint, and calculating the maximum number of distributed power flow controllers installed. Based on the operation characteristics of distributed power flow controllers and by considering the installation quantity constraint of distributed power flow controllers on each line, the operation parameter constraint and the traditional power system operation constraint, the maximum amount of new energy consumed and the optimal configuration scheme of distributed power flow controllers under the performance index conditions can be calculated using the idea of double-layer optimization, which can provide guidance for the installation of distributed power flow controllers.