A UDP protocol acceleration system includes a client terminal, an acceleration server, and a source station. The client terminal includes a local proxy at the application layer and one or more local applications to be accelerated, and a network filter at the IP layer. The local proxy identifies redirection requests from different local applications among requests received and, for each redirection request, queries an original destination address, and encapsulates and sends the original destination address and the redirection request to the acceleration server. The acceleration server parses the original destination, acts as a proxy for the redirection request, and sends a response back to the local proxy. The local proxy, after receiving the response from the acceleration server, queries acceleration records, and forwards the response to a corresponding local application.