Load detection method and device

The embodiment of the invention provides a load detection method and device. The method is applied to electrical equipment provided with a wireless power supply and heating multiplex circuit, the wireless power supply and heating multiplex circuit comprises a switch module and a resonance module, the switch module is electrically connected with the resonance module, and the method comprises the following steps: driving the switch module to be conducted based on a preset frequency sequence, the preset frequency sequence comprises a plurality of frequencies arranged according to a specified sequence; first working parameters of the resonance module under the multiple frequencies are obtained respectively; determining a first load type of a load arranged on the electrical equipment based on the first working parameters of the resonance module under the plurality of frequencies; wherein the first load type comprises a passive load and a non-passive load. According to the technical scheme provided by the embodimen