The invention relates to a radio remote control address programmable and bi-directional communication digital light control system, comprising a micro processor, a memory, a radio sending and receiving module, a LCD display, a plurality of keys, a photo inductor, a communication interface circuit for DMX512 and DALI and a plurality of system processing software. The invention has the advantages that the functions of on, off, timing and light-adjusting for the a wireless remote control light or a wireless remote control electric appliance are realized; a programmable online radio for user address setup is provided; the emitter can control the receiver as long as the emitter has the same address as the receiver; the communication is bi-directional while the control is unidirectional; the LCD of the emitter displays human-machine conversation and integrates the functions of time, temperature, timing and switch. The invention is suitable for the control and use of radio remote control light and household appliances in families, hotels, restaurants, companies and other locations.