This paper introduces a development solution for implementing an interactive interface between the power system computing database and the operation control system (OCS) online data. According to the requirements of software engineering, the system requirements analysis, overall design, and software programming have been completed. At present, the system has been put into trial operation in the Southern Power Grid. The development solution effectively improves the maintenance of data, which is of great significance for achieving automated maintenance work. At the same time, it achieves standardization and universality of basic model maintenance.