The invention discloses a POE power supply method and POE power supply equipment. A main power supply channel and at least one standby power supply channel are set for the same power supply port in the power supply equipment, wherein the standby power supply channel is used for supplying power for power receiving equipment at the main power supply channel when the main power supply channel is in fault; the standby power supply is realized at one side of the power supply equipment; compared with the scheme of arranging two ports on the power receiving equipment to receive the power source so as to prevent the power receiving equipment from power failure in the prior art, the main and the standby power supply channels are arranged on the power supply equipment, the transformation on the power receiving equipment is unnecessary, and the POE power supply equipment disclosed by the invention is suitable for the power receiving equipment used on the market at present, and has good compatibility; secondly, the scheme of arranging two receiving ports on the power receiving equipment in the prior art is a passive power failure prevention way, and cannot well defense the power supply interruption caused by the abnormality of the power supply equipment; the POE power supply equipment disclosed by the invention has stronger capacity of continuously supplying power for the power receiving equipment, and is more practical.