The invention provides a rapid infeasible solution removal power distribution network reconstruction method based on the harmonic algorithm. On the basis of analysis of defects of the existing networkreconstruction algorithm, the concept of a branch group is put forward, a system topology diagram is encoded, and fusion with the intelligent optimization algorithm can be effectively carried out. Taking the harmonic algorithm as an example, realization steps of organic combination of the algorithm and four branch break rules, compared with the existing method, infeasible solution generation conditions are concluded, search efficiency is improved, moreover, omission of feasible solutions is avoided, solution space integrity is guaranteed, through organic combination with the harmonic algorithm, the network reconstruction speed and global optimal solution search capability are effectively improved.