Method, device and system for accessing network data in webpage applications

The embodiment of the invention discloses a method, a device and a system for accessing network data in webpage applications. According to the method, the device and the system disclosed by the embodiment of the invention, the network data access request related to the webpage applications and sent by a user through a browser is intercepted, and then global load balance information is obtained, the most matched access server is selected for the network data access request according to the global load balance information, the network data access request is re-orientated to the access server, and network data access is carries out by the access server; because the scheme is capable of selecting the proper access server according to the global load balance information, and re-orientating the network data access request to the selected access server, thus the browser is capable of accessing the network data through the current most proper access server; therefore, the quality of network data access in the webpage applications can be improved, and the reliability and smoothness of network data access in the webpage applications can be improved.