A channel switching method, comprising: obtaining, by a mobile Wi-Fi device, a channel switching instruction sent by a Wi-Fi access point, wherein the channel switching instruction carries a destination channel identifier (S 301); and switching, by the mobile Wi-Fi device according to the channel switching instruction, from a communication channel between the mobile Wi-Fi device and the Wi-Fi access point before switching, and from a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device before switching to a destination communication channel corresponding to the destination channel identifier (S 302), wherein the destination communication channel is different to the communication channel between the mobile Wi-Fi device and the Wi-Fi access point before switching and is also different to the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device before switching, characterized in that the switching, by the mobile Wi-Fi device according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier comprises: controlling, by the mobile Wi-Fi device, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier; and simultaneously controlling the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination channel identifier. obtaining, by a mobile Wi-Fi device, a channel switching instruction sent by a Wi-Fi access point, wherein the channel switching instruction carries a destination channel identifier (S 301); and switching, by the mobile Wi-Fi device according to the channel switching instruction, from a communication channel between the mobile Wi-Fi device and the Wi-Fi access point before switching, and from a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device before switching to a destination communication channel corresponding to the destination channel identifier (S 302), wherein the destination communication channel is different to the communication channel between the mobile Wi-Fi device and the Wi-Fi access point before switching and is also different to the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device before switching, characterized in that the switching, by the mobile Wi-Fi device according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier comprises: controlling, by the mobile Wi-Fi device, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier; and simultaneously controlling the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination channel identifier. controlling, by the mobile Wi-Fi device, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier; and simultaneously controlling the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination channel identifier.