The study examined how L2 engagement is associated with students' general life satisfaction, a core element of well-being. A total of 1,109 seventh-grade EFL learners from a rural secondary school in China completed a measure of life satisfaction (family satisfaction, environment satisfaction, academic satisfaction, school satisfaction, freedom satisfaction, and friendship satisfaction) and a measure of foreign language engagement (cognitive engagement, emotional engagement, behavioural engagement, and social engagement). Path analysis shows that life satisfaction generally predicted L2 engagement positively. Variations were found in the associations between six life satisfaction dimensions and four L2 engagement dimensions. A positive psychology lens is adopted to interpret the findings and make concrete suggestions about how to enhance learner engagement. The findings imply that a proactive preventative stance on bolstering engagement could be encouraged such as fostering learners' positive perceptions and beliefs of self, family, school, environment, study, and friends.