在对头塘小流域山地系统特征了解的基础上，探讨了该区域山地防护林体系结构的调整、配置方式和营建技术。经对小流域所建防护林体系进行防护效益监测分析，结果表明：营建防护林体系后，防护效益显著，土壤侵蚀模数由１８３１ｔ／ｋｍ２·ａ下降到１１６５ｔ／ｋｍ２·ａ，减少了３６％；坡地造林后，地表径流较荒草坡地、裸地分别减少７９４４％和９４０１％，泥沙削减率下降８７８％和９８８％。头塘小流域在金沙江流域具有代表性，其防护林体系的结构配置以及营建技术，可用以指导金沙江流域山地防护林体系建设 Based on the understanding of the characteristics of the mountainous system in Toutang Small Watershed, the adjustment, configuration and construction techniques of the mountain shelter forest system in this area were discussed. After monitoring and analyzing the protective benefit of the shelter forest system built in the small watershed, the results showed that the protective efficiency was significant after the shelterbelt system was built, and the soil erosion modulus decreased from 1831t / km2 · a to 1165t / km2 · a, a decrease of 36% After afforestation, the runoff of surface land decreased by 7944% and 9401% respectively compared with that of barefoot slope and bare land, and the sediment reduction rate decreased by 878% and 988% respectively. Toutang small watershed in the Jinsha River basin representative, the structure of the shelterbelt system configuration and construction technology, can be used to guide the Jinsha River basin mountain shelterbelt system construction