Abstract: The stability of poverty alleviation is measured based on the dynamic monitoring results of the per capita household income for three consecutive years （whether the income stably stays above 15 times the poverty line from 2018 to 2020） and the investigation status of the repayment ability of microloans for poverty alleviation of rural households lifted out of povertyThe indicators for the identification and measurement of household livelihood strategies are based on the type and duration of livelihood activities engaged in by household pillar membersUsing the data of 1 133 families lifted out of poverty obtained from field research in Liangshan area，this paper empirically explores the impact of livelihood strategy choices on the poverty alleviation stability of rural householdsThe results show that：（1） Livelihood strategies affect the poverty alleviation stability of rural householdsCompared with autonomous livelihood households，the poverty alleviation stability of policydependent livelihood households is insufficient；among autonomous livelihood，multiple livelihood strategy with nonfarm employment is more conductive to stable poverty alleviation than pure agricultural livelihood（2） The impact of livelihood strategies on poverty alleviation is moderated by household demographic characteristics，whether they are registered impoverished families，and the support policies，among which the stimulation of endogenous motivation of rural households' poverty alleviation development，the organization of household management and the integration of industrial chain promoted by policy support help to suppress the unstable poverty alleviation effect of policydependent livelihood and pure agricultural livelihood（3） Livelihood strategies influence the stability of poverty alleviation through two channels：household income structure and income level
Key words：livelihood strategies；poverty alleviation stability；autonomous livelihood；Liangshan area；influence channel