Objectives This research aimed to examine the direct and indirect effects of growth mindset and task cost(effort cost, opportunity cost, emotional cost, ego cost) on the student engagement of college students.
 Methods For this study, data were collected from 323 students through a self-report questionnaire of research variables from College in Gyeongbuk province. Data in this study were analyzed using SPSS 22.0 and AMOS 23.0 programs. First, after conducting descriptive statistics and correlation analysis between major variables, confirmatory factor analysis was conducted to verify the validity of the measurement model. Second, a structural equation model analysis was conducted to verify the structural relationship between major variables. Third, bootstrapping analysis was performed by setting phantom variables to verify the significance of multi-parallel mediating effects.
 Results The research results are as follows. First, the growth mindset was significantly positive in student engagement and effort cost, while negative in emotional cost. Second, effort cost was significantly positive, while emotional cost was significantly negative in student engagement. Third, it was found to have statically partial mediating effects both effort cost and emotional cost in the path between growth mindset and student participation.
 Conclusions This study is meaningful in that it provides basic data to suggest effective student engagement in consideration of the positive and negative psychological constructs of college students.