A visible light communication system, includes a data storage apparatus, a data transmitter and a data receiver, the data transmitter includes data receiving module for receiving data from the data storage apparatus, modulating module for modulating the data received by the data receiving module, and transmitting module for transmitting the data modulated by the modulating module to the data receiver as a carrier of illumination light, the data receiver includes illumination light detecting module for detecting the illumination light received by the transmitting module in accordance with an output variation of power converting module, demodulating module for demodulating the illumination light detected by the illumination light detecting module, and displaying module for displaying the data demodulated by the demodulating module.