With the rapid development of civil aviation in recent years, the management and assignment of airport resources are becoming more and more difficult. Among the various airport resources, gates and taxiways are very important, therefore, many researchers focus on the airport gate and taxiway assignment problem. However, the joint assignment algorithm of airport gates and taxiways with real-istic airport data has not been well studied. A greedy algorithm based on joint assignment of airport gates and taxiways using the data of a large hub airport in China is proposed. The objective is maxi-mizing the ratio of fixed gates and minimizing the ratio of taxiway collisions. Simulation results show that it outperforms other assignment schemes.