Introduction: This study explores how graduate students' mentorship homegate (or team) support (GSMTS) and challenging-hindering pressures impact their intrinsic motivation for research, identifi cation with research roles, and innovative behaviors.Methods: Data from 548 graduate students were collected using convenience sampling and analyzed using Amos and SPSS statistical software package via questionnaires distributed to universities in SiChuan province of China.: The findings reveal that (1) research stress can not directly and positively predict innovative behaviors among graduate students, while intrinsic research motivation and research role identificatio n mediate the relationship between research stress and graduate students' innovative behavior; (2) hin dering research pressure negatively impacts the intrinsic motivation for research, whereas challengin g research pressure has a positive effect; (3) GSMTS directly fosters innovative behaviors among gra duate students, with intrinsic motivation and roles' identification for research as sequential mediators; and (4) GSMTS positively moderates the relationship between challenging research pressure and bot h the intrinsic motivation for research and role identity. Discussion: This suggests that higher education institutions should cultivate an optimal research and innovation environment for graduate students by increasing challenging research pressure and reducing hindering pressure. They should also emphasize the development of graduate students' intrinsic motivation for research and identification with research roles. Concurrently, the role of GSMTS should be highlighted to facilitate both the direct and indirect development of graduate students' innovative behaviors. Note: The revised sections of the manuscript are highlighted in red font to facilitate the review process for experts and editors.