本文报道木豆在广西西部喀斯特地区适应性试验结果。结果表明，木豆适应性强，速生快长，当年种植株高可达1.5～3.0m，能较快覆盖裸露的喀斯特石山，且可涵养水源，防止水土流失，提高土壤肥力，恢复生态环境。木豆籽粒可做人类粮食，也可作为畜禽饲料，木豆的嫩枝叶可做山羊、水牛、黄牛等草食动物的青饲料。因此，木豆是解决桂西石山区畜牧饲料的最好作物之一。 This paper reports the results of the adaptability of pigeons in the karst area of ​​western Guangxi. The results showed that Pigeon bean has strong adaptability and fast growing speed. The plant height in this year can reach 1.5-3.0m, which can cover the exposed Karst Rock quickly, and can conserve water, prevent soil erosion, improve soil fertility and restore ecological environment. Beans grain can be used as human food, but also can be used as livestock and poultry feed, young leaves of pigeon do goats, buffaloes, cattle and other herbivores green feed. Therefore, pigeon is one of the best crops to solve the livestock feed in the mountainous area of ​​Gui Xi.