The invention discloses a weakly looped power distribution network load flow calculation method considering distributed power supplies. The weakly looped power distribution network load flow calculation method comprises the steps that a looped network loop is processed to obtain a radiant network and an end compensation circuit by utilizing a superposition principle, and the load flow calculation problem of a weakly looped power distribution network is solved. Processing modes of four distributed power supplies including wind power generation, a fuel cell, photovoltaic module and a photovoltaic in load flow calculation are given. Finally, the weakly looped power distribution network load flow calculation method considering the distributed power supplies is given. The method has the advantages that the load flow calculation method is simple and clear, the calculation process is remarkably simplified, and complicated power network search is not needed.