The invention discloses a point-to-point transformer capacity mutual assistance method. The method comprises the following steps: S1, installing an intelligent terminal at a transformer; S2, connecting various energy type energy storage elements such as a battery and the like and a flexible load to a distribution network through an intelligent terminal; S3, completing point-to-point data transmission through an intelligent terminal, orderly connecting the scattered transformers, and efficiently coordinating the collected mass data through big data and an artificial intelligence technology, sothat the transformers cooperatively output power to realize mutual aid sharing of capacities; and S5, automatically completing transaction settlement by the platform according to the judgment result of the power dispatching department and rules. For aiming at information interaction, response confirmation, transaction signing, default judgment, result accounting and the like in the platform operation process, a standardized process is formulated, supervision and control of the whole supply and demand transaction process are realized, and timeliness, reliability and safety are ensured.