With Picea koraiensis as the research object which have similar growth vigor in a same habitat, the photosynthetic rate, transpiration rate, chlorophyll content, weight of dry-matter and leaf color change of Picea koraiensis in different lighting conditions were determined. Environment without light sources was taken as the control group. The results showed that different light sources and different distances from light sources to plants had diversified impact on the photosynthetic physiology of Picea koraiensis. Among these different color lights, green light had the least influence on Picea koraiensis, yellow light and purple light had greater influence.
