：孤独感作为老年人易发的不良心理体验，对老年人身心健康有着较为严重的负面影响。为探究互联网使用与老年人孤独感之间的关系，文章从理论层面梳理了互联网使用对老年人孤独感的作用影响，并提出相关假设及构建相应模型。在假设检验中，文章利用中国健康与养老追踪调查数据，以基于稳健标准误的最小二乘回归对模型进行参数估计，并以反事实设计与倾向得分匹配法对回归结果进行稳健性检验。实证结果表明，互联网的使用与老年人的孤独感呈现显著负相关关系，即老年人的互联网使用能够带来个体孤独感的显著降低。最后，结合研究结论，从激发老年人互联网使用动机、培养老年人互联网使用能力、提升老年人互联网使用体验三个方面对促进老年人互联网使用行为提出了相应政策建议。

Loneliness is a common psychological experience in older adults, which may result in severe negative health outcomes. This paper aims at investigating the causal relationship between the Internet use and the perception of loneliness of older-adult population. First,   the hypothesized relationships on the basis of a brief literature review is established, and then  an econometric model is proposed. To test the hypotheses, the cross-sectional data of China Health and Retirement Longitudinal Study（CHARLS）is employed. An Ordinary Least Square regression with robust standard error is conducted to estimate the coefficients. To ensure the robustness of the regression results, this paper follows a robustness check by using the counter-factual design and propensity score matching. The results show that the Internet use behavior is negatively associated with the perception of loneliness among older adults, suggesting that Internet use plays a mitigating effect on older adult's loneliness perception. Drawn on empirical results, several practical implications, including the motivation, ability, and user experience design of older adult's Internet use, are discussed to shed light on the Internet adoption and loneliness alleviation among older adults.