This article reports on a study that examined the relationship between language learners' L2 grit and language mindsets and their attitudes toward CALL. The participants of the study were 625 EFL learners (male = 165, 26.4%; female = 460, 73.6%) with the mean age of 24.4 years (SD = 1.74). They were asked to respond to questionnaires on language mindsets, L2 grit, and attitudes toward CALL. The data were analyzed through regression and structural equation modeling (SEM). The results indicated that fixed mindsets predicted the effectiveness of CALL negatively and exhibition to CALL positively, whereas growth mindsets positively predicted the effectiveness of CALL. The results also indicated that persistence of effort positively predicted surplus value of CALL and teacher's influence on CALL, and consistency of interest predicted degree of exhibition to CALL.