The purpose of this study is to explore the influencing factors of dual-employee family work engagement. On the research method, the theoretical model is constructed based on the resource conservation theory, and the computer-aided research method is adopted, combined with questionnaire survey and structural equation model analysis for empirical research. The results show that work resources (including work autonomy, promotion opportunities and social support) have a significant positive impact on the work engagement of dual-earner families. At the same time, family resources (such as family support, family atmosphere and parent-child relationship) also indirectly support job engagement. Work-family conflict plays an intermediary role between work resources and work engagement, indicating that the shortage of work resources may aggravate work-family conflict and then reduce work engagement. The study also verified the existence of resource spiral effect, that is, there is a significant mutual promotion relationship between work input and the growth of family resources. These research results provide a new perspective for understanding the complex mechanism of dual-employee family work engagement.