Work engagement is an important indicator in human resource management. From a personal perspective, engagement is related to safety, job satisfaction, employee loyalty, work performance, and personal behavior in the organization (Markos & Sridevi, 2010) [9]. This study aims to determine the contents of the work engagement of sales staff at real estate firms in Hanoi. The research sample includes 195 real estate salespeople working at real estate firms in Hanoi. Reliability analysis methods through Cronbach's alpha coefficient and exploratory factor analysis (EFA) were used to interpret the data. The results show that all three contents belonging to the work engagement of real estate salespeople with 15 observed variables are significant. In addition, the study also offers some solutions that administrators can use to increase the work engagement of real estate salespeople