In order to solve the problems such as insufficient interconnection capacity, overload of main transformer and so forth during the power supply recovering process after main transformer fault, this paper presents a novel power restoration scheme based on interconnection relationship capability. This scheme firstly forms main transformer interconnection matrix and conforms load transfer area by using simplified network topology relationship. When the main transformer is out of operation due to failure or maintenance, the load of faulted main transformer is distributed basing on the capacity-load ratio of the load transfer district. In the process of distribution, sub-load transfer strategy is proposed aiming at the constraint of interconnection capacity and secondary transfer strategy aiming at the constraint of main transformer capacity. Simulation results verify that the scheme can effectively improve the equipment utilization ratio of distribution network and load transfer capability, besides, the load distribution is more balanced.