The operational application of Starlink system is becoming more and more mature. Considering that Starlink system is still under rapid construction, it is necessary to conduct a systematic analysis of its future operational application. In order to explore the future operation mode of the Starlink system of the US military, this paper, based on the analysis of the fundamental state of Starlink, focuses on high-end wars of great powers, explores the impact of Starlink on the operations of the US military from four levels of operational theory, and shows the system supporting role of Starlink. Finally, an operational simulation experiment of Starlink is given to analyze the long-term capability. By analyzing the operational mode and capability of the mid-stage Starlink operation, it lays a foundation for the follow-up countermeasures.