Abstract: Job insecurity refers to employees’ perceptions and concerns about the threats of imminent job loss and loss of valued job features. The issue of job insecurity has received growing recognition in the research fields of organizational behavior and occupational health psychology since 1980’s. This paper recommended five distinct ways to clarify the opaque and then focused on the measures and research approaches. Moreover, a great deal of empirical work about antecedents, consequences and moderators of job insecurity has been systematically reviewed. Finally, new trends pertaining to the future research of job insecurity were discussed as follows: (1) standard measurement; (2) situation of organizational changes; (3) antecedents and consequences; (4) moderators; (5) longitudinal research; (6) cross-culture comparison

Key words: job insecurity, moderator, employee, organization