The invention relates to a power distribution network reestablishing method, in particular to a multi-target network reestablishing method for an active power distribution network. On the basis of a new requirement of the active power distribution network for network reestablishing, a new hybrid evolutionary algorithm is put forward to be used for reestablishing the power distribution network, an initial network close to the optimal solution is rapidly obtained through the optical flow pattern algorithm, then the optimal solution is found through a tree-shaped structure coding monolepsis algorithm, the tree-shaped structure coding is conducted on the initial network, and solving is conducted through the monolepsis algorithm. The method has the advantages that when network reestablishing is conducted on the active power distribution network, the influences of distributed type power supplies are taken into full consideration, force output constraints of the distributed power supplies are contained in the constraint conditions, the influences of distributed type power supply plan islands are taken into full consideration in reliability calculation, the network loss of the power distribution network where network reestablishing is conducted is greatly reduced, the power supply reliability is improved, and meanwhile the reestablishing result better conforms to the actual situation that a lot of distributed type power supplies are connected into the active power distribution network.