The present invention relates to a radio frequency (RF) switch controller power supply apparatus. In case of the apparatus, it is possible not only to manually turn on/off electronic switches but also to remote control turning on/off a plurality of lamps installed at respective rooms by using an RF wireless remote controller. Also, since a plurality of transformers connected in series is connected to a power line toward the switches of the lamps and currents are extracted from the respective transformers, power in need is supplied to the RF switch controller.The RF switch controller power supply apparatus includes first to third lamp switching units turning on/off first to third lamps (L1 to L3), respectively, an RF switch controller remote controlling the respective lamp switching units, and a power supply unit supplying power consumed by the RF switch controller, and the apparatus controlling turning on/off the respective lamps (L1 to L3) according to a received RF wireless remote signal, a current booster and a first rectifying unit boosting and extracting a minute current flowing through the first lamp switching unit into a high current and rectifying the current into direct current (DC) power when the respective lamp switching units are turned on, a second rectifying unit and an AC/DC converter rectifying and decompressing an alternate current (AC) supplied to a main power line and the first lamp switching unit when the first lamp switching unit is turned off, and a DC/DC converter decompressing and supplying the DC power extracted by the first rectifying unit to the RF switch controller when the lamp (L1) is turned on and compressing and supplying the DC power outputted via the AC/DC converter to the RF switch controller when the lamp (L1) is turned off.