In line with the social cure literature, the present preregistered study aimed to test the extent to which group identification could have beneficial effects for PhD candidates, in particular by promoting their mental health, mitigating their feelings of imposture, and promoting their work. An online questionnaire was distributed to a convenience sample of 124 French PhD candidates, and assessed participants’ identification to the group of PhD candidates, psychological health (i.e., stress, anxiety, depression, burnout, obsessive passion), imposter thoughts, and work related variables expected to favor career success (i.e., self-efficacy, perceived competence, harmonious passion). As expected, group identification showed negative associations with stress, anxiety, depression, burnout, and obsessive passion. A contrario, group identification also showed positive associations with self-efficacy, perceived competence, and harmonious passion. However, no association was observed between group identification and imposter thoughts. Taken together, these results highlight the beneficial effects of social identification for PhD candidates’ mental health and work. Theoretical and practical perspectives are discussed.