The invention discloses a home gateway and a method of an IPv6 host to access a network server, and relates to the technical field of network communication. The home gateway comprises a DNS64 module, a routing module and an NAT module; the DNS64 module is used for forwarding an analysis request of a network server domain name sent by the IPv6 host to a DNS server, when an IP address corresponding to a domain name returned by the DNS server is an IPv4 address, synthesizing the IP address corresponding to the domain name into an IPv6 address, and sending the IPv6 address to the IPv6 host; the routing module is used for forwarding a second connection request obtained by the NAT module by performing network address conversion on a first connection request to the network server, converting a response message of the second connection request returned by the network server. By adoption of the method disclosed by the invention, the IPv6 host accesses IPv6 Internet resources and IPv4 Internet resources.