Abstract: Since planting fruit trees on the mountainous or hilly lands is the most common land-using approach in Sino-Burma border area, the soil erosion is serious because of summer rains and winter spring drought. A possible solution to the problem of soil erosion is the interplanting of fruit trees with forages and grain crops. Therefore, the situation of interplanting of forages and general economic crops in southwest Yunnan and southeast Yunnan was analyzed and compared by literature review, investigation and experiments. The interplanting effects were studied from the aspects of yield, output value, coverage and effect of water and soil conservation. The results showed that in Sino-Burma border orchards, the forage germplasm resources for interplanting were rich. The yields and output value of interplanting leguminous and gramineae were the highest, and the fresh yield was 79000-83000 kg/hm², the output value was 13500-42000 yuan/hm², which were higher than those of leguminous, gramineae and compositae. Interplanting crops were mainly capsicum, bean, ginger, and the economic benefit was 7500-36000 yuan/hm². Interplanting ginger had the highest economic benefit. In conclusion, the interplanting of leguminous and gramineae in Sino-Burma border orchards had the best benefit, and the interplanting of forages had better economic and ecological benefit than the interplanting of crops.