The invention relates to an intelligent power distribution network fault recovery method based on an organism immune mechanism, and the method specifically comprises the following steps: S1, an immune recognition module obtains information of a power distribution network through monitoring, judges the fault state, and extracts a characteristic quantity; S2, an immune matching module matches the characteristic quantity with a characteristic quantity in a fault state recorded in a power distribution network fault characteristic library in an immune memory module, if matching succeeds, the step S3 is executed, or otherwise, the step S4 is executed; S3, an immune response module performs secondary power grid fault response and executes a corresponding fault recovery scheme; S4, the immune response module performs primary power grid fault response, judges whether a fault downstream load has an interconnection switch for transfer, if so, performs load transfer and checks power flow, or otherwise, performs island division on a fault downstream area; and S5, a fault recovery scheme is generated according to the fault processing flow in the step S4, and the fault recovery scheme is recorded to a grid fault feature library. Compared with the prior art, the method has the advantages of improving the response speed of power grid fault recovery and the like.