Based on intelligent control is discussed in this paper the LED lighting on the significance of developing low carbon economy. Combined with flat lamp dimming controller are introduced to realize the office lighting method under the condition of using existing flat lamp, lighting power density (6). 63W/M2. Discussed the carbon emissions in the process, factors affecting the size of carbon emissions and the development of energy-saving lighting. Calculated the lighting intelligent control device is significance for the development of low carbon economy.