The current investigation employs models of reciprocal effects among emotion management, cognitive reappraisal, homework completion, and achievement, based on two measurement points from 1450 Chinese 8th graders. Results revealed that emotion management and math achievement were reciprocally related. Furthermore, higher prior achievement led to higher subsequent cognitive reappraisal and homework completion. Additionally, significant interactions were found between emotion management and cognitive reappraisal in the prediction of subsequent emotion management, cognitive reappraisal, and homework completion. Specifically, these findings indicated that emotion management had a more positive influence on subsequent emotion management, cognitive reappraisal, and homework completion when prior cognitive reappraisal was low (compensatory effect by decreasing the gap between students with prior high and low cognitive reappraisal).