Research indicates that tea bush growth and yield are inferior under long-term forest heavy shading. However, evidence further shows that it's possible to establish a forest-tea production system by quality improvement, because of shading tolerance characteristic. So, in proper shading, forest trees and tea bushes intercropping could make a forest-tea production system that might attain economic standard. This article has reviewed forest-tea production system and tea growth yield in response to shading of forest condition. Additionally, discussion of photosynthesis characteristics and estimation of the possibility of forest-tea production system in Taiwan are presented.