To explore the intrinsic pathways through which participation in Innovation and Entrepre-neurship Competitions influences study style construction and academic performance,a questionnaire survey and archival analysis were conducted on students majoring in Power and Energy Engineering at a university.Multidimensional data,including competition participation level,learning engagement,awareness of academic norms,and academic performance,were collected.Structural Equation Model-ing and the Bootstrap method were employed for analysis.The results indicate that the level of competi-tion participation significantly and positively predicts students' learning engagement and awareness of academic norms.Further mediation effect analysis reveals that both learning engagement and awareness of academic norms fully mediate the relationship between competition participation and academic per-formance(core course scores,research practice outcomes).This mediating mechanism holds true for both undergraduate and postgraduate student groups,although the mediating effect of awareness of aca-demic norms is stronger among postgraduates.From the perspective of experimental and practical edu-cation,the study confirms the transmission mechanism of"competition participation → internalization of study style → academic improvement",providing empirical evidence for universities to systematical-ly promote study style construction and innovative talent cultivation through such competitions.