【Objective】Collapsing hill is a phenomenon of slope erosion of soil or weathered rocks, collapsing and accumulating at the foot of the hill under hydraulic and gravity actions. Its harm is great in degree and hard to control. Fiber reinforcement is a new type of soil improvement technology to improve mechanical properties of the soil by amending a certain amount of fiber or fiber mesh into the soil evenly. It has, in recent years, been attracting much interest of scholars in conducting researches and experiments. But so far little has been reported on unconfined compressive strength of jute-fiber-fortified collapsing hill soil. Therefore, in this study experiments were carried out to explore mechanism of amending jute fiber into collapsing hill soil enhancing compressive strength and stability of the soil composite. 【Method】 In this study, the experiment was laid out in two-factor randomized block design and carried out to characterize stress-strain and unconfined compressive strength of the jute fiber- fortified collapsing hill soil composite. In the experiment, unconfined compressive strength of the composite was investigated relative to quanty and distribution of the jute fiber amended in four layers of the soil composite, i.e.. Eluvial layer A, Argic layer Bt, Deposition layer B and Parent material layer C. 【Result】 It was found that optimal reinforcement conditions (quanty and distribution) varied with the soil layer. For Eluvial layer A, jute fiber should be applied at 1 and distributed vertically; for Argic layer Bt, applied at 3 and blended evently; for Deposition layer B, applied at 1 and distributed horizontally; and for Parent material layer C, applied at 5 and distributed is horizontally, thus improving the unconfined compressive strength of the four layers by 7.97%, 19.24%, 15.35% and 42.88%, respectively, as compared with the unfortified soil. When starch was amended to jute fiber in the experiment, it took some time to cure the composite. And it was found that unconfined compressive strength of the four-layers was significantly related to the curing time. The strength was maximized after 7 days, 7 days, 5 days and 3 days of curing, increasing by 14.45% 15.07%, 8.90% and 8.07%, respectively.【Conclusion】Based on the experimental study, effect of the reinforcement is evaluated quantitatively, which demonstrates that a new technology of layered fortification for preventing and managing slope disintegration. All the findings in this study may serve as important scientific basis for prevention and control of collapsing slope erosion.