饥饿是一种周期出现的生理动机，对个体的心理和行为存在广泛影响。已有研究对饥饿与亲社会行为间的关系进行了研究，但结论不一，因此有必要探究饥饿对亲社会行为的影响路径。研究一采用问卷调查了169名饥饿程度不同的大学生的亲社会行为水平，同时考察了他们的自我损耗程度和意志力观念。研究二采用线上实验的方式操纵了46名大学生的饥饿程度，并对其亲社会行为水平，自我损耗程度和意志力观念进行测量。结果发现，在问卷调查中，自我损耗在饥饿对亲社会行为的影响中起部分中介作用，其中饥饿负向预测亲社会行为水平，正向预测自我损耗程度，自我损耗正向预测亲社会行为水平。在线上实验中，仅发现饥饿正向预测自我损耗程度，而对亲社会行为没有预测作用。研究没能证明意志力观念的调节作用。本研究的结果提供了不同研究条件下饥饿个体亲社会行为水平的差异，揭示了环境对饥饿个体行为的塑造作用。未来研究，应进一步控制研究条件，探究饥饿对亲社会行为影响中其他可能的影响因素。

Hunger is a cyclical physiological motivation that has a widespread impact on individuals' psychology and behavior. There have been studies on the relationship between hunger and prosocial behavior, but the conclusions are different. Therefore, it is necessary to explore the path of the impact of hunger on prosocial behavior. In the first study, 169 college students with different hunger levels were investigated by questionnaires on their prosocial behavior, and their ego-depletion and willpower beliefs were also investigated. In the second study, 46 college students were manipulated by online experiment to measure their level of prosocial behavior, ego-depletion and willpower beliefs. The results showed that in the questionnaire survey, ego-depletion played a partial mediating role in the impact of hunger on prosocial behavior. Among them, hunger negatively predicted the level of prosocial behavior, positively predicted the degree of ego-depletion, and positively predicted the level of prosocial behavior. In online experiments, only hunger positively predicted ego-depletion, but not prosocial behavior. Research has failed to prove the moderating effect of the concept of willpower beliefs. The results of this study provide the difference in the level of prosocial behavior of hungry individuals under different research conditions, and reveal the role of environment in shaping the behavior of hungry individuals. Future research should further control the research conditions and explore other possible factors in the impact of hunger on prosocial behavior.