Abstract: Aiming at the high reliability transmission and processing requirements of power grid communication ser-vices, a bidirectional operation risk correlation analysis technology for power grid optical communication system is proposed to address the problem of multi-source risk and hidden danger data fusion processing. Firstly, the data processing and analysis framework of potential risks in power grid optical communication system based on digital twinning is constructed to realize the unified integration of TMS2.0 and digital twinning. Furthermore, the technology of risk hidden data preprocessing and correlation analysis is put for-ward to realize the elimination of abnormal data and the fusion of risk hidden data from multiple systems. The simulation results show that the proposed technology can effectively improve the speed and accuracy of data analysis of potential risks and provide support for the safe and stable operation of power grid.