Technical education is an integral part of China's vocational education. For a long time, technical schools, technician colleges and other technical colleges have cultivated many skilled talents for China. The current development of China's economy requires further transformation and upgrading. On the one hand, continuous advancement of science and technology is needed to drive the upgrading of the skills industry. This requires a large number of professional and technical talents. On the other hand, with the continuous increase in the number of employed people in society, the expansion of enrollment in colleges and universities, and the rise of higher vocational colleges. Competition for employment among graduates from various institutions is also becoming increasingly fierce. This has also made the employment issue of technical school students gradually become one of the hot issues that has attracted social attention. Technical schools are the main form of technical education. Its sustainable development depends mainly on the employment status of students. As the saying goes, "Employment is the greatest livelihood of the people." The employment issue of technical school students not only concerns the students and their families but also affects the Chinese technological and economic development and social stability. It has both theoretical and practical significance to research issues related to students' employment in technical schools, timely discover the deficiencies in student employment and propose practical and effective solutions. The employment situation of students in any education system is a significant issue related to education and society. There are few studies on career choice in the secondary vocational education system. Therefore, this article first sorts out and analyzes the research background and significance of the selected topic and relevant domestic and foreign research. A questionnaire was designed based on career development theory. The current situation of graduates' employment choices was investigated through questionnaire collection. Use correlation analysis to analyze existing problems and the reasons behind them. Analyze the factors that influence the employment choices of secondary vocational graduates. Focus on analyzing the current situation of employability of secondary vocational students. And explore ways and methods to improve the employment choices and employability of secondary vocational graduates.