Back-to-source processing method and device of CDN, and system

The invention relates to a back-to-source processing method and device of a CDN, and a system. The method comprises the steps of: obtaining a target resource request and back-to-source path information, wherein the back-to-source path information at least comprises a virtual IP address on a back-to-source path of a target source station; and the virtual IP address is configured to execute back-to-source processing of a CDN node; and, according to the back-to-source path information, forwarding the request, so that the request is transmitted to the target source station. By means of the back-to-source processing method and device of the CDN, and the system disclosed by the invention, the acceleration effect of the CDN on website contents can be at least improved effectively. 种CDN的回源处理方法及装置、系统，包括：获取目标资源的请求以及回源路径信息，所述回源路径信息至少包含目标源站的回源路径上的虚拟IP地址，所述虚拟IP地址配置为执行CDN节点的回源处理；根据所述回源路径信息，将所述请求进行转发，以便所述请求被送至所述目标源站。本申请至少能够有效改善CDN对网站内容的加速效果。