Abstract:Entrepreneurial activity is a barometer of regional economic development. Entrepreneurial environment is one of the most main factors in influencing entrepreneurial activity. Due to large span, cities are different in geographical conditions and resources. Economic and social development is very uneven in Inner Mongolia. Therefore, based on the comprehensive index evaluation method, the paper attempts to establish a suitable entrepreneurial environment evaluation index system. It uses the open second-hand data of statistical yearbook and the first-hand data of investigation questionnaire to evaluate 12 cities’ entrepreneurial environment and to compare the entrepreneurial environment from region to region. Then the paper tries to find out the cause of the unbalanced development of entrepreneurial activity, and attempts to give policy suggestions on promoting 12 cities’ entrepreneurial environment in Inner Mongolia.