In the rapidly changing and highly competitive job market, equal employment has become an important indicator of social progress and economic justice. This study aims to explore the impact mechanisms of social support, goal orientation, and career decision-making self-efficacy on college students' job preparation behavior from the perspective of equal employment. Path analysis was conducted on survey data from 350 college students, and the results showed that both social support and goal orientation positively influence career decision-making self-efficacy and job preparation behavior. Career decision-making self-efficacy fully mediates the relationship between social support and job preparation behavior, as well as between goal orientation and job preparation behavior. The study finds that effective strategies to enhance college students' job preparation behavior include strengthening career decision-making self-efficacy, setting specific career goals, and providing ample social support. Through joint efforts by universities and students, multiple layers of protection in the employment environment can be achieved, ultimately leading to high-quality employment.