Abstract:Based on job demands-resources model and conservation of resources theory, this study explores the effect of employees’ perceived supervisory support and family support on knowledge sharing behaviors in the workplace, and discusses the mediating effect of job engagement on the above relationship and the moderating role of team integration on the relationship between perceived support and job engagement. Through the analysis of survey data collected from 227 front-line employees and their supervisors in the chain retailing industry, the results show that: perceived supervisory support and perceived family support have a positive impact on job engagement; Job engagement positively affects knowledge sharing behaviors; Team integration positively moderates the relationship between perceived supervisory support and job engagement; Team integration negatively moderates the relationship between perceived family support and job engagement. Finally, the theoretical and practical implications of the research are discussed.