A method for providing an application service, wherein the method comprises: periodically receiving, by a first application server in a system for providing an application service, wherein the first application server is deployed on a radio access network side and connected to a first access network device in the system, information about a wireless network environment that is sent by the first access network device; receiving, by the first application server, an application request sent by the first access network device, wherein the application request is received by the first access network device from a user equipment; determining, by the first application server, whether to process an application service corresponding to the application request; in a case in which it is determined by the first application server to process the application service corresponding to the application request, determining, by the first application server, an application response according to the application request; in a case in which it is determined by the first application server not to process the application service corresponding to the application request, sending, by the first application server, the application request to a target device, and receiving, by the first application server, the application response sent by the target device, wherein the target device is a core network device, a second application server, or a third application server in the system; determining, by the first application server, a guarantee message according to the application response and the wireless network environment, wherein the guarantee message is used for instructing the first access network device to guarantee sending of the application response by adjusting network sending scheduling according to the wireless network environment; sending (204, 208, 210), by the first application server, the application response and the guarantee message to the first access network device, so that the first access network device sends the application response to the user equipment according to the guarantee message; and in a case in which sending of the application response is completed, restoring, by the first application server, a network state so that the adjusting the network sending scheduling is no longer applied. periodically receiving, by a first application server in a system for providing an application service, wherein the first application server is deployed on a radio access network side and connected to a first access network device in the system, information about a wireless network environment that is sent by the first access network device; receiving, by the first application server, an application request sent by the first access network device, wherein the application request is received by the first access network device from a user equipment; determining, by the first application server, whether to process an application service corresponding to the application request; in a case in which it is determined by the first application server to process the application service corresponding to the application request, determining, by the first application server, an application response according to the application request; in a case in which it is determined by the first application server not to process the application service corresponding to the application request, sending, by the first application server, the application request to a target device, and receiving, by the first application server, the application response sent by the target device, wherein the target device is a core network device, a second application server, or a third application server in the system; determining, by the first application server, a guarantee message according to the application response and the wireless network environment, wherein the guarantee message is used for instructing the first access network device to guarantee sending of the application response by adjusting network sending scheduling according to the wireless network environment; sending (204, 208, 210), by the first application server, the application response and the guarantee message to the first access network device, so that the first access network device sends the application response to the user equipment according to the guarantee message; and in a case in which sending of the application response is completed, restoring, by the first application server, a network state so that the adjusting the network sending scheduling is no longer applied.