Recent studies have shown that formal mentoring support plays a vital role in prot eg es' creativity. The psychological mechanisms linking formal mentoring support to prot eg es' creativity and its boundary conditions, however, are less clear. To fill this gap, this study aims to examine how and when formal mentors exert their impact on prot eg es' creativity, drawing upon a self-regulatory perspective. By using 231 ongoing mentor-prot eg e dyads in China, our results indicate that prot eg es' feedback seeking from mentors mediates the relationship between formal mentoring support and prot eg es' creativity. Furthermore, we found that the chronic promotion focus of prot eg es plays a significant moderating role in the relationships between formal mentoring support and prot eg es' feedback seeking from mentors, and between feedback seeking from mentors and prot eg es' creativity, as well as the association between formal mentoring support and prot eg e creativity via feedback seeking from mentors. Those relationships tend to be stronger when prot eg es have high levels of chronic promotion focus. Some implications for theory and organizational practices are discussed, as well as suggestions for further areas of research.