The invention relates to a frequency synchronization method for cluster-based two-stage distributed antennae in wireless communication, belonging to the technical field of wireless communication. The method comprises the following steps: clustering a communication system provided with a plurality of distributed antennae, selecting cluster representing antennae, and completing high-precision frequency synchronization among the cluster representing antennae; and initiating the frequency synchronization of the distributed antennae in all the clusters by the cluster representing antennae, thereby implementing the frequency synchronization of all the distributed antennae in the system. In the invention, the clustering treatment enables the simultaneous synchronization of the clusters, thereby shortening the total synchronization time and increasing the synchronization speed. The method provided by the invention achieves higher synchronization precision, thereby satisfying the requirement of the wireless communication system for synchronization precision. In the method, the synchronization among the distributed antennae is previously completed, thereby preventing the terminal user from repeatedly synchronizing the distributed antennae, reducing the expenses of the terminal user on the system resources and enhancing the reliability of the communication.