The purpose of this study was to investigate the career development process. The item categories of the career development and the psycho-social development were administered to 481 junior high school students, 662 senior high school students and 256 university students. A factor analysis of 50 items on the career development indicated 3 factors of career development. Then, the signs of the factor scores were combined to classify the subjects into 8 types of career development: Type A-Work commitment (high intention of self-realization = H), Type B-Role exploration (H), Type C-Evaluation criteria acceptance (H), Type D-Work alienation (H), Type E-Work commitment (low intention of self-realization = L), Type F-Role exploration (L), Type G-Evaluation criteria acceptance (L), Type H-Work alienation (L). The main fiindings were as follows: (1) The career development types could be interpreted by the psycho-social development factors; (2) Changes in career development patterns corresponded to age; (3) Career development proceeded in the order to Type A, B, E, F, C, D, G, and H.