Abstract:QoS and the distributional hypothesized simulation are the hot spots which the recent years studied, in the distributional hypothesized simulation system has decided simulation system's accuracy and timeliness to a great extent regarding the correspondence mechanism's QoS request. This article take an airplane simulation training system as a foundation, discussed in the distributional simulation system's correspondence mechanism with emphasis and requested to correspondence QoS, established based on the content discrimination formation model, the model has used CBWFQ in the foundation the LLQ formation dispatch algorithm to satisfy IP request QoS, enhanced the distributional simulation timeliness and the accuracy, and has confirmed the model usability through the actual effect.