| Under the background of consolidating poverty alleviation achievements and rural revitalization goals, agricultural insurance plays an important role in alleviating the relative vulnerability of farmers to poverty and helping long-term poverty prevention. Therefore, based on 583 household survey data, this study uses instrumental variable method and threshold model to analyze the alleviating effect of agricultural insurance on the relative poverty vulnerability of farmers from the dimension of guarantee level, and examines its mechanism from the perspective of the impact of agricultural production behavior. The results show: Firstly, there is a threshold effect on the impact of agricultural insurance coverage on the relative poverty vulnerability of farmers, only after crossing the failure interval, the improvement of the guarantee level can significantly reduce the relative poverty vulnerability of farmers; Meanwhile, it has a significant alleviating effect on both risk relative poverty vulnerability farmers and capital relative poverty vulnerability farmers, but its impact on risk relative poverty vulnerability farmers is stronger. Secondly, within the effective range, the improvement of guarantee level will affect agricultural production behavior by expanding land investment scale and improving agricultural machinery application, thereby reducing the relative poverty vulnerability of farmers and achieving poverty prevention. Finally, within the effective range, an increase in the guarantee level could significantly reduce the relative poverty vulnerability of small farmers and new agricultural operators, and the impact on small farmers is stronger. To this end, it is necessary to enhance the guarantee level of agriculture, improve the collaborative interaction mechanism between agricultural insurance and agricultural credit financing, enhance the directionality of agricultural insurance policies to enhance the endogenous development motivation of farmers, thereby promoting agricultural insurance to help prevent poverty. |