In order to overcome the disorder of the geographical distribution in the construction of power distribution system and islands of information in information interconnection, and provide users with more convenient service, an architecture and application of operation and maintenance in intelligent power distribution system based on the “Internet+” technology is discussed in this paper. The transformation and upgrading of traditional industry of power distribution system on the basis of “Internet+” technology provide great support for optimization of operation and maintenance in power distribution system, fine analysis for operation of power distribution system, and improvement of efficiency in operation and maintenance. Therefore it can improve the reliability and economy of power distribution system and achieve the optimal commercial and social value.