By field survey and follow-up investigation on famers,the technology on the comprehensive management in Wuguan small watershed in the lower reaches of Jinsha River is studied,including biological measures,engineering measures,farming practices,and other complementary measures.The ecological,economic and social benefits are further analyzed.Results showed that forest and grass coverage rate was improved from 25% to 81%,an increasing of 56% ; the average annual amount of soil erosion was reduced from 26 700 to 6 500 ton,a decreasing of 75.77% ; grain yield was increased from 3 645 to 9 330 kg/hm²,an increasing of 156% ; per capita food production was increased from 282 to 416 kg,an increasing of 47.52% ;agricultural output value was increased from 4.15 @ 10⁵to 4.40 @ 10⁶thousand yuan,an increasing of 960.13% ; and per capita net income was increased from 184 to 1 660 yuan,an increasing of 802.17%.In the end,the paper summarized the successful experience of the comprehensive control in Wuguan small water-shed and the referenced significance to other small watersheds in the Jinsha River region.