Abstract: The overall framework of the Aviation Meteorological Numerical Prediction System is introduced, and a detailed explanation of the key parameters and operational modes of the Global Medium-Range Numerical Weather Forecasting Subsystem, the Regional Numerical Weather Forecasting Subsystem, the Asian Regional Short-Term Ensemble Forecasting Subsystem, the Rapid Assimilation Numerical Forecasting Subsystem, and the Numerical Forecasting Monitoring Subsystem is provided. And a summary of the system's characteristics in data assimilation, operational modes, and forecast products is presented.