Abstract: The ecophysiological effect of Medicago sativa L. biosphere of different strips on young Camellia sinensis Kuntze garden was studied. The results show that in mid-summer, increase in Medicago sativa L. planting proportion increases humidity and canopy closure of the system, while light intensity, temperature and soil temperature decrease. With increasing Medicago sativa L. planting proportion, “midday depression” of leaves of young Camellia sinensis markedly improves, net photosynthesis increases, and net photosynthesis rates of 2∶1, 2∶3 and 2∶5 strip patterns increase by 29.17%, 57.29% and 80.73% respectively. Intercropping of Medicago sativa L. and young Camellia sinensis improves eco-environment of tea orchards, which is helpful for a vigorous growth of young Camellia sinensis, with minimal interval difference effect on young Camellia sinensis. Thermal quality of herbages of Medicago sativa L. biosphere coverage improves significantly as well. Differences in forage and hay yield of different strips, BS₂ and different strips of 2∶1, 2∶3 and 2∶5 strip patterns are highly significant. The best intercropping system is the 2∶5 strip pattern, which not only improves the eco-environment, but equally attains high quality in Medicago sativa L. The construction of complex artificial systems between Medicago sativa L. and young Camellia sinensis creates conducive eco-environment for the growth of young Camellia sinensis, which provides good quality feed for the development of pastoral industry in the southern hilly zones.