A visible light communication (VLC) me thod for both energy and signal wireless transmitting is introduced with or dina ry indoor lighting conditions.Different from traditional VLC,silicon photovoltai c cell array is used to replace silicon photodiode (PIN) and avalanche diode (APD) as d etector,which can gain energy for charging the lithium battery and transmit data through visible light simulta neously.In this paper,based on carrier transport model,the response properties of silicon photovoltaic cell arr ay related to environmental illumination are analyzed.The response properties and output voltage of silicon photovoltaic cell are tested and verified in ordinary indoor illumination.Results have shown that the respons e properties and output voltage are both increased with raised illumination level.When the distance between detecto r and LED is 1.8m and the illumination is 380lx,by amplifying circuit designing,300kHz transmitting rate is achieved and the output voltage is 2.8V,which can meet the need of signal detection and boost battery charging circuit.