The invention discloses a charging method and device for direct current charging equipment, wherein the method comprises the following steps that when a power supply charging interface is connected with power supply equipment, whether the preset mark information sent by the power supply equipment can be received in the preset time or not is judged, wherein the preset mark information is the mark information sent on the basis of a preset charging protocol; if the preset mark information is received in the preset time, the current power supply equipment is determined to the first power supply equipment; if the preset mark information is not received in the preset time, the current power supply equipment is determined to be second power supply equipment. The charging method and device provided by the invention solve the technical problem of poor compatibility due to the direct current charging equipment in the prior art.