The invention belongs to the Internet technology field and especially relates to a processing method of inexistence domain name query in a DNS. The method comprises the following steps that an NSEC or NSEC3 resource record is cached in a recursive server; a forwarding server acquires and caches the NSEC or NSEC3 resource record from the recursive server; when a user continuously inquires a determined inexistence domain name in the NSEC or NSEC3 resource record, the recursive server or the forwarding server directly returns an NXDOMAIN message to the user according to information of the NSEC or NSEC3 resource record. By using the method, query time delay of the inexistence domain name can be reduced; a query frequency of an authoritative server of the domain name can be decreased and resource consumption of the authoritative server is reduced; a lot of inexistence TLD query can be avoided; and a Water Torture problem can be well solved and does not generate an influence on the authoritative server.