Abstract: To investigate the complicated relation between the sortie generation and aviation maintenance of Nimitz class aircraft carrier， three secession steps are suggested in this paper. Firstly， the transition of 6 states is abstracted from the workflow of aviation maintenance to characterize the mission profile of carrier based aircrafts. Then， the mission profile of air wings is deduced from the sortie generation objective， and a state transition diagram is plotted correspondingly. Finally， the demand of aviation maintenance capacity， namely for flight-deck operation and transfer operation， are determined based on the above state transition diagram. It is observed that the proposed method is both effective and efficient for system analysis.