Family harmony is a state of good relations among family members, smooth communication, mutual support and reasonable conflict resolution. Maintaining good family harmony is important for improving individual well-being, promoting physical and mental health, and fostering social stability and development. The factors affecting the developmental changes of family harmony are currently under-explored, and our study followed the same cohort of university students for more than three years in the context of the Covid-19 pandemic, thus revealing the impact of the pandemic on college students’ experience of family harmony. 215 (M = 18.87, SD = 0.92), 211 (M = 18.88, SD = 0.92), and 57 (M = 21.70, SD = 0.82) participants completed the College Students’ Experience of Family Harmony Questionnaire (CSEFHQ) in early December 2019 (before the pandemic), March 2020 (at the stage of the outbreak of COVID-19), and April 2023 (after the end of the pandemic). Using mixed regression models, significant differences in college students’ experience of family harmony were found at three time points. Our study shows that college students’ experience of family harmony is significantly lower over time, from before the epidemic to during the epidemic to after the end of the epidemic. It is evident that the Covid-19 pandemic had a significant negative impact on family harmony and that the impact persisted after the end of the epidemic to the extent that the sense of family harmony after the end of the epidemic was not only lower than before the epidemic but also lower than during the epidemic. The study suggests that individuals need to make efforts to establish good communication with family members, increase opportunities to spend time together, and support each other in order to overcome the negative effects of the Covid-19 pandemic on family harmony.

家庭和睦是家庭成员之间关系良好、沟通顺畅、相互支持、合理解决矛盾的状态。维护良好的家庭和睦，对于提高个人福祉、促进身心健康、促进社会稳定和发展具有重要意义。目前影响家庭和谐发展变化的因素尚未得到充分探讨，我们的研究在Covid-19大流行的背景下对同一队列的大学生进行了三年多的跟踪，从而揭示了大流行对大学生的影响' 体验家庭和谐。12月初，215名（M = 18.87，SD = 0.92）、211名（M = 18.88，SD = 0.92）和57名（M = 21.70，SD = 0.82）参与者完成了大学生家庭和谐体验问卷（CSEFHQ） 2019年（大流行之前）、2020年3月（COVID-19爆发阶段）和2023年4月（大流行结束后）。利用混合回归模型，发现大学生的家庭和谐体验在三个时间点存在显着差异。我们的研究表明，从疫情前到疫情期间再到疫情结束后，大学生的家庭和谐体验随着时间的推移显着降低。可见，Covid-19大流行对家庭和睦产生了显着的负面影响，而且这种影响在疫情结束后仍然持续存在，以至于疫情结束后的家庭和睦感不仅低于疫情前。疫情期间，但也低于疫情期间。研究表明，个人需要努力与家庭成员建立良好的沟通，增加共度时光的机会，并互相支持，以克服Covid-19大流行对家庭和谐的负面影响。