A wireless access device, comprising: one or more processors; a memory; a cellular module, configured to: access the Internet and receive a cellular signal by the wireless access device; a wireless fidelity Wi-Fi module, configured to send a Wi-Fi signal by the wireless access device; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and the one or more computer programs comprise instructions, wherein when the instructions are executed by the one or more processors, the wireless access device is enabled to perform the following steps: converting the cellular signal received by the cellular module into the Wi-Fi signal; and when it is determined that a first preset condition or a second preset condition or both are met, reducing uplink transmit power of a cellular network, to reduce interference from the cellular signal to the Wi-Fi signal, wherein the first preset condition comprises: there is a Wi-Fi device whose signal status parameter is less than a first threshold in connected Wi-Fi devices, the uplink transmit power of the cellular network is greater than or equal to a second threshold, and a signal status parameter of the cellular network is greater than or equal to a third threshold, wherein the signal status parameter comprises a received signal strength parameter and a signal quality parameter, and the second preset condition comprises: a Wi-Fi rate of a Wi-Fi device with a smallest signal status parameter in the connected Wi-Fi devices is less than a fourth threshold, and an air interface throughput of the cellular network is greater than or equal to a fifth threshold. one or more processors; a memory; a cellular module, configured to: access the Internet and receive a cellular signal by the wireless access device; a wireless fidelity Wi-Fi module, configured to send a Wi-Fi signal by the wireless access device; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and the one or more computer programs comprise instructions, wherein when the instructions are executed by the one or more processors, the wireless access device is enabled to perform the following steps: converting the cellular signal received by the cellular module into the Wi-Fi signal; and when it is determined that a first preset condition or a second preset condition or both are met, reducing uplink transmit power of a cellular network, to reduce interference from the cellular signal to the Wi-Fi signal, wherein the first preset condition comprises: there is a Wi-Fi device whose signal status parameter is less than a first threshold in connected Wi-Fi devices, the uplink transmit power of the cellular network is greater than or equal to a second threshold, and a signal status parameter of the cellular network is greater than or equal to a third threshold, wherein the signal status parameter comprises a received signal strength parameter and a signal quality parameter, and the second preset condition comprises: a Wi-Fi rate of a Wi-Fi device with a smallest signal status parameter in the connected Wi-Fi devices is less than a fourth threshold, and an air interface throughput of the cellular network is greater than or equal to a fifth threshold. converting the cellular signal received by the cellular module into the Wi-Fi signal; and when it is determined that a first preset condition or a second preset condition or both are met, reducing uplink transmit power of a cellular network, to reduce interference from the cellular signal to the Wi-Fi signal, wherein the first preset condition comprises: there is a Wi-Fi device whose signal status parameter is less than a first threshold in connected Wi-Fi devices, the uplink transmit power of the cellular network is greater than or equal to a second threshold, and a signal status parameter of the cellular network is greater than or equal to a third threshold, wherein the signal status parameter comprises a received signal strength parameter and a signal quality parameter, and the second preset condition comprises: a Wi-Fi rate of a Wi-Fi device with a smallest signal status parameter in the connected Wi-Fi devices is less than a fourth threshold, and an air interface throughput of the cellular network is greater than or equal to a fifth threshold.