Method and system for dynamic frequency spectrum distribution

The invention discloses a method and a system for dynamic frequency spectrum deployment, and comprises the following procedures: monitoring the frequency spectrum to predicate the stability of each frequency band; after user business data flow arriving at a terminal of network, obtaining the predicated result of the stability of each frequency band, deploying the user business data to different frequency band according to the function played in the business transmission quality; wherein, the user business data playing a major function in the business transmission quality is deployed to the frequency bands with higher stability and the ones playing a minor function is deployed to the frequency bands with lower stability. The invention solves the problem that when the arrival of the initial system in a frequency band leads to break off or even to lose the data transmission for users who use the frequency band to send data.