Locust is one of the main afforestion species of soil and water conservation in the mid-dle west of China,especially in the loess plateau. As the denudation and runaway,locust forestin a large scale area still have some ecologic benefit,but the economic benefit was lower. The re-sult of experments and researchs in Changwu conuty,Shaanxi province showed that clear-cuttingand root-sprout regeneration is an efficient way of reforming lower product locust forest