Synchronization is one of the key techniques for Frequency-Hopping(FH) communication system.Based on the requests of synchronization for a high-speed FH communication system,achieved synchronization by using a method combined synchronization-head with time of day(TOD).Mainly studies the structure of synchronization sequence,synchronization of hopping pattern,bit synchronization,and so on.The performance of synchronization is analyzed and the simulation is completed by using MATLAB6.5.The performance of synchronization shows that the synchronization of FH communication system makes synchronization time short,capture probability high,false probability low.