The invention relates to a method and system for performing intelligent monitoring and analysis on a CDN (Content Delivery Network) acceleration service. The method comprises the steps of S1, establishing a CDN monitoring and analysis task; S2, performing data acquisition on corresponding parameters according to requirements of the CDN monitoring and analysis task; S3, performing classification analysis on the acquired data; and S4, comparing the analysis result with a feature library to obtain a result of the CDN monitoring and analysis task. The system comprises a task creation module, a data acquisition module, a data classification module and a data comparison module, wherein the task creation module is used for establishing a CDN monitoring and analysis task according to user requirements; the data acquisition module is used for performing data acquisition on corresponding parameters according to the requirements of the CDN monitoring and analysis task; the data classification module is used for performing classification analysis on the acquired data; and the data comparison module is used for comparing the analysis result with a feature library to obtain a result of the CDN monitoring and analysis task. Therefore, the method can realize quantization of a CDN acceleration effect and facilitate customers to accurate measure and evaluate the acceleration effect.