The purpose of this research is to estimate how many career consultants should be required in Japan. The so-called career consultants generally shall consult with working people who face a turning point of their career process such as job incompetence, internal replacement or promotion. They also shall encourage both students and unemployed people to get jobs with psychological and technical support. In 2002 the Ministry of Health, Labor and Welfare (MHLW) declared that 50, 000 consultants should be created in Japan within next five years. Organizations as schools, companies, public employment bureau and private human business seem to require career consultants. However, up to now the MHLW has not reported such definite number required for each organization. This report is the first research to estimate the career consultants' number required in Japan. The required number shall be altogether 85, 000, a far larger number than MHLW announced.