Teachers play a pivotal role in Blended learning (BL) implementation. However, there is limited literature on the impact factors of teacher acceptance and long-term willingness toward BL in the military college. To address this gap, this paper presents a conceptual model of teachers’ factors for BL-based instruction based on the unified theory of acceptance and use of technology (UTAUT) model. Drawing from a sample of 103 teachers, this paper showed that effort expectation (EE), social influence (SI), self-efficacy (SE), and pleasure motivation (PM) have significant positive impacts on the adoption and long-term willingness of BL. In contrast, performance expectation (PE) seems to have limited appeal for teachers in terms of adopting and long-term willingness toward BL. The influence of Facilitate Conditions (FC) is considered insignificant. In the end, the paper concludes with research recommendations along six dimensions to improve policy on teachers’ adoption and long-term willingness to use