The use of “cloud computing” in the field of career planning education can solve several problems in career planning education. Based on the real needs of students’ career growth, the article carries out research on the construction of a career planning education platform based on cloud computing. It designs a career planning education platform based on cloud computing, utilizes cloud computing methods for the construction of resource library and the construction of career planning education “practical training cloud”, and further elaborates on the distributed dynamic load balancing algorithm for the construction of “practical training cloud”. Regression analysis of the career planning education platform and student gains. In the regression analysis of the use of the platform on the gain of employability, except for the negative influence of mass media on the gain of employability, whose regression coefficient is -0.138, all other variables have a positive influence. As a result, it can be concluded that the employability of students has been improved after utilizing the cloud-based career planning education platform proposed in this paper.