家庭社会经济地位（SES）作为衡量家庭环境的重要指标，是左右个体发展的重要环境因素。以往研究表明，低（vs.高）SES的大学生不仅承受着物质贫困，还面对不同程度的心理压力，易在跨期选择中追寻即时满足，并体验到较低的主观幸福感，而这显然不利于其未来发展。为探究SES与跨期选择和主观幸福感的关系及其发挥作用的内在机制与边界条件，本研究使用问卷调查，收集了265名18-25岁大学生的SES、跨期选择、主观幸福感、自我控制水平、领悟社会支持情况，结果发现：（1）SES可直接预测跨期选择，SES低的大学生，在跨期选择中会表现出更强的即时倾向；（2）自我控制在SES与主观幸福感的关系中起完全中介作用，低SES大学生的自我控制能力更低，进而无法很好调节情绪、追求成功；（3）领悟社会支持调节中介路径的前后半段，SES对自我控制、自我控制对主观幸福感的预测都受到领悟社会支持的调节。

As an important indicator of family environment, family socioeconomic status is an important environmental factor affecting individual development. College has always been a very important life stage. College students need to make a lot of important choices and face pressure from school and family. Previous studies have shown that college students with low (vs. high) family socioeconomic status not only suffer from material poverty, but also face different degrees of psychological and ideological pressure. They are more likely to show immediate tendency in intertemporal choice and lower subjective well-being, which is not conducive to their future development. In order to explore the internal mechanism of this problem, this study used a questionnaire to collect 265 college students aged 18-25 years of family socioeconomic status, intertemporal choice, subjective well-being, self-control level, perceived social support. Through data analysis and model test, the results show that: (1) family socioeconomic status directly predicts intertemporal choice; (2) Family socioeconomic status predicts subjective well-being through self-control; (3) To understand the effects of social support on family socioeconomic status on self-control and self-control on subjective well-being.