This paper investigates the influencing factors of self-directed learning behavior of higher vocational students under blended teaching mode. This study aims to analyze the influence of behavioral intention, attitude, perceived usefulness, perceived ease of use, compatibility, subjective norms, peer influence, supervisor influence, perceived behavioral control, self-efficacy, resource and technological conditions, past behavior, and preliminary knowledge on students' self-directed learning behavior. The study design consisted of collecting data through an online survey and applying structural equation modeling (SEM) for data analysis using SmartPLS 4.0 software. It was found that perceived behavioral control, past behavior, and preliminary knowledge have a significant impact on students' self-directed learning behavior. This study provides valuable insights for higher education faculty and institutions to optimize the implementation of blended learning and promote independent learning.