China’s new college entrance examination model has been fully launched, abolishing the distinction between liberal arts and sciences, and adopting the method of selecting subjects. This change is bound to cause confusion for Chinese high school students in their future choices.<BR> The purpose of this study was to develop a Chinese Career Indecision Scale (C-CIS) applicable to Chinese high school students. China’s culture and education system have many differences from the West. Particularly, the reform of the college entrance examination being implemented in China may have a profound impact on the career choices of high school students. Therefore, this study was conducted to prove the hypothesis that factors may exist and to discover meaningful factors, other than the existing foreign career indecision factors. In addition, it is meaningful in terms of comparative culture research to find out the differences in the career decision-making process between Korea and China.<BR> A total procedure of four steps was conducted to develop and validate the scale. The C-CIS comprises seven factors: lack of vocation information, lack of self-clarity, lack of information on majors, unawareness of necessity, lack of ability, decision-making difficulty, and external obstacles.<BR> Results indicated that two additional factors were found: “lack of ability” and “lack of information on majors”, which unfound in existing foreign career indecision factors, and it is significant in reflecting the characteristics of Chinese culture and education system. It also confirmed the value of research.<BR> Therefore, in the career education of high school in China, it is necessary to strengthen the understanding of university majors in one hand, and to help students improve their learning ability in the other hand.<BR> The C-CIS total score and factors showed significant correlations with various mental health variables, supporting the criterion-related validity of the C-CIS. Finally, it pointed out the implications of the results and the need for future studies.