Abstract: To strengthen the information security protection level in the construction of new Energy Internet power system, based on the research and tests on the quantum encryption information security protection technology for the power distribution grid based on 5G access edge computing, the 5G power private network communication technology and quantum encryption technology are applied in the terminal environments of power distribution grid, and enables secure communication between the distribution terminal equipment and distribution station and system response time controllable through the integration among the quantum key and power business terminal, terminal and quantum key, 5G communication and quantum encryption equipment, which offers security support for power distribution automation business to use "three remotes" function.