The invention discloses a telemetering data processing system and method for assisting satellite flight control. The system comprises a virtual network module, a data playback module, a data receiving module, a data processing module, a data distribution module and a data interpretation module, wherein the data playback module, the data receiving module and the data distribution module perform data interaction through the virtual network module; the data receiving module is used for receiving real-time data and/or historical data from a receiving port; the data processing module is used for analyzing the real-time data and/or historical data to obtain a decimal engineering value; the data distribution module is used for distributing the engineering value to the data interpretation module; and the data interpretation module is used for interpreting the engineering value to obtain an interpretation result. By adoption of the telemetering data processing system and method, the problems that the volume of the existing telemetering data processing system is too large, the composition is too complex, the deployment is inconvenient and the carrying is inconvenient are solved.