The landing environment of carrier-based aircraft is extremely complex. The pilot needs to get the secondary command signal from landing signal officer(LSO) for final carrier approach and landing. It is necessary to include the LSO command model in the simulation model of carrier landing approach for human pilot control. On the basis of analyzing the behaviors of the LSO in the final carrier approach, a model of LSO was presented for the digital simulation of a pilot-carrier system. Fuzzy logic laws were used to model three kinds of the behaviors of the LSO: the judgment of the distance between the aircraft and the ship, the judgment of the path deviation and the decision of the command signal sent to the pilot. A neural network model was applied to describe the LSO’s prediction of the ship motion. The rationality of the model was verified through the simulation results of carrier landing under several kinds of conditions.