Different channel requirements for power system in different business results in a variety of problems in the construction of power backbone communication network, which is greatly different from the public network construction How to solve the problem has become the key of power optical fiber backbone communication applications. Based on this, this article introduces on the main transmission technology, researches on the power optical fiber backbone communication network application technology from the aspects of transmission technology, construction target and application scheme. It hopes to play a certain role in promoting the development of future power optical fiber backbone communication network.