The current investigation studied psychometric properties of the Homework Emotion Regulation Scale (HERS) for math homework, with 915 tenth graders from China. Confirmatory factor analyses (CFAs) supported the presence of two separate yet related subscales for the HERS: Emotion Management and Cognitive Reappraisal. The latent factor means for both subscales were shown to be invariant across gender. Furthermore, both subscales were positively related to homework purposes and behaviors (effort and completion) in the theoretically expected directions. Meanwhile, math performance was positively related to emotion management, but not cognitive reappraisal.