We study the factors that determine teachers’ behavioral intention to adopt microlecture. We collect 500 survey responses across elementary and secondary schools in China and propose a model based on three previous works: Technology Acceptance Model 3 (TAM 3), Innovation Diffusion Theory and Model of Personal Computer Utilization (MPCU). Our results show that perceived usefulness is a significant determinant for teachers’ attitude toward microlecture. Perceived ease of use and output quality significantly influence perceived usefulness, with the latter being more significant. Additionally, external control and computer self-efficacy are found to be factors that influence perceived usefulness. External control is a more significant contributor to perceived usefulness. Overall, our model accounts for 57.1% of variability in teachers’ intention to use microlecture. Out of 11 formulated hypotheses, 6 are supported by the data. The results provide valuable implications for ways to increase teachers’ acceptance of microlecture.