Under the background of deepening the talent development strategy of civil-military integration, improving organizational commitment of military talents has been a common issue for army and local university to collaboratively cultivate military talents. To examine the mechanism of individual career management on organizational commitment, we surveyed 3603 undergraduate reserve officers from 16 universities with questionnaires. Results showed that: Individual career management positively predicted organizational commitment, career competency and cultivation satisfaction had a single and chain mediation effect between individual career management and organizational commitment. Instrumental support positively moderated the relationship between individual career management and career competency, and both instrumental support and emotional support positively moderated the relationship between individual career management and cultivation satisfaction respectively.