The present invention provides a capability opening system, a capability opening gateway, a capability opening agent, and a capability opening method of a wireless network. The capability opening system includes the capability opening gateway, a UE, and an application server, where the UE includes an application client and the capability opening agent; and the application client exchanges information of a service with the application server through a first interface, the application server exchanges capability information of the wireless network with the capability opening gateway through a second interface, and the capability opening agent exchanges related radio environment information with the capability opening gateway through a third interface. In embodiments of the present invention, a capability opening agent is added to a UE.