Disclosed are a browser and a method for domain name resolution by the same. The method comprises: starting the browser and calling DNS acceleration data information, wherein the DNS acceleration data information comprises several domain names obtained in advance and IP address information corresponding to each domain name; receiving an access request for a certain URL initiated by a user, parsing the access request and extracting the domain name corresponding to the URL; and detecting whether the domain name corresponding to the URL is contained in the DNS acceleration data information, and if yes, obtaining the IP address information corresponding to the domain name, and utilizing the IP address information for access processing. By conducting statistics on some primary domain names in advance to form DNS acceleration data information, the disclosure may implement webpage browsing acceleration when the DNS acceleration data information is called by a user-side browser. Such a procedure of acceleration processing consumes a short time, and improves the efficiency of DNS acceleration.