The invention discloses a resource optimization method for a mobile browser based on cloud-client cooperation. The present method includes: 1) set up a proxy server on the user's mobile terminal, set up a cloud server on the user's personal cloud; 2) mobile terminal proxy server receives and resolves the URL request from the browser, and if the mobile terminal proxy server resources have been cached URL corresponding to the request, or calculated by the URL matching algorithm there is a corresponding resource, the process directly returns the resource to the browser; otherwise, it sends the request to the cloud server; 3) the cloud server checks if the resource corresponding to the URL in the request has been cached; if the resource is cached, returning the resource to the proxy server; otherwise sending a request to the target website corresponding to URL in the resource request and returning the results to the proxy server; and 4) returning the result received by the proxy server to the browser in accordance with the structure of the HTTP response. The invention greatly improves the loading speed.