By using the date collected from a 14-15 year-old tea plantation intercropped with slash pine, We have compared the main ecological factors, the physiological characteristics and the anatomical structure of tea leaves with those from the pule tea plantations, The results obtained show that the light intensity in the interplanted tea plantation is 45.2-38.6% lower than that in the pure one; the temperature is 1°-3°C lower during the day time and relativily higher during the night with a small daily fluctuationSj the relative humidity of air is higher in summer and the soil nutrient is less in the upper layer of 0-20cm and more in the lower layer of 20-60cm. Also in the intercropping system, the photosynthesis rate tea plants is 4% greater and their evapotranspiration rate is 20.3-21.3% less than that in the open. The upper epidermis, palisade tissues and leaves are all thinner, so the leaves are more tender, and its yield is 8% higher; there are more caffeine and amino acids in the leaves and the ratio of poly-phenol to amino acids is lower. All these indicate that the green tea from the pure tea plantations. The actual stock volume of interplanted trees reaches 49.5m3 per hectare. Therefore, the comprehensive economic benefits of the intercropped tea plantation is 30% greater than that of the monoculture of tea plants.