The invention discloses a full-process system deployment method based on an automatic operation and maintenance platform of a power system. The method comprises the steps of inputting host applicationinformation, judging and verifying the host application information, carrying out step-by-step approval of an approval end, creating a host, carrying out automatic installation and deployment of a proxy client, carrying out system environment initialization configuration, carrying out business system basic environment custom deployment, transferring to business system data configuration and carrying out business system deployment. The problem of manual establishment and deployment of each link during new service system deployment is solved, the operation and maintenance efficiency is improved, the operation and maintenance cost is reduced, and the application prospect is good.