This paper was aimed to explore the factors influencing life satisfaction of 147 family caregivers of the longevous through a questionnaire survey. The results showed that 65.3% of the family caregivers of the longevous were satisfied with their current life. The factors affecting their life satisfaction were the gender of the longevous(OR=3.271)，the self ? rated economic status of the family caregiver(OR=29.448)and the objective economic income of the family caregiver(OR=0.292). The state and government should improve education on non ? gender differentiation in elderly care，and all children take responsibility for elderly care，avoiding the inconvenience in care giving and alleviating conflicts between mothers?in?law and daughters?in?law. They should comprehensively assess the economic status of longevous families，reasonably allocate human resources and supplies，and provide respite services and precise assistance to improve the life satisfaction of family caregivers of the longevous.