Employment psychological capital is a positive psychological force that can promote higher vocational college students to effectively solve the pressures and challenges they face in the process of employment. Combined with the problems and psychological conditions faced by students in higher vocational colleges, a questionnaire was designed to investigate from 11 aspects, such as the judgment of employment situation, employment pressure, employment prospect, the impact of major emergencies on employment, employment psychological guidance, employment competitive mentality, employment psychological preparation, employment hardship coping, employment expectation, employment psychological obstacles and job search failure. The psychological problems of vocational college students, such as employment incompetence, anxiety, lack of self-confidence, pessimism and lack of resilience, are not only reflected in the changing, complex and fierce employment environment, but also due to the insufficient development of psychological capital in the four dimensions of "self-efficacy, hope, optimism and resilience", which leads to unsatisfactory graduation results. Based on the analysis of the present situation, this paper puts forward some countermeasures for the psychological adjustment of students' employment in higher vocational colleges.