The invention provides a page access method and device based on a browser. The method comprises the steps that a plug-in accesses a required page through the browser, and a first page access request is generated; the plug-in adds identity authentication information of a proxy server to the head of the first page access request, and a second page access request is obtained; when the identity authentication information of the proxy server is successfully authenticated, the page is accessed, and page content is returned to the browser. The plug-in adds identity authentication information of the proxy server to the head of the page access request so that the browser can access the proxy server which requires identity authentication, wherein the proxy server generally does not limit the accessfrequency of the page; thus, when the browser obtains the page, the access frequency is not limited, the stability is good, and the problems are solved that in the prior art, the proxy server which requires the identity authentication cannot be used, the stability is poor, the proxy server needs to be set frequently, more time is consumed, and the user experience is poor.