Domain name resolution method, device and system based on WIFI device

The invention discloses a domain name resolution method, device and system based on a WIFI device. The domain name resolution method comprises the steps that after connection between the WIFI device and a terminal is created, appointed domain name information is assigned to the terminal; a domain name resolution request, with the appointed domain name information, sent by the terminal is received; the domain name resolution request is redirected to a security server according to the appointed domain name information, so that the security server carries out domain name resolution according to the domain name resolution request, and a domain name resolution result subjected to security verification through the security server is obtained; the domain name resolution result returned by the security server is fed back to the terminal. According to the domain name resolution method, device and system based on the WIFI device, when the terminal gets on the Internet through the WIFI device, the terminal can obtain the safe domain name resolution result verified through the security server, security of the process that a user gets on the Internet through the WIFI device is ensured, and the phenomenon that the user skips to a malicious website due to malicious domain name resolution is avoided.