| Abstract | With the strategic deployment promotion of "mass entrepreneurship and innovation", the entrepreneurial drive and enthusiasm of our citizens have increased unprecedentedly. Based on capability theory, and under the perspective of utility maximization, we analyze the utility factors of entrepreneurship income, job autonomy, entrepreneurial opportunities, work devote level and entrepreneurship risk. And then we develop the individual utility maximization model of career choice; and resolve the decision-making mechanism of individual entrepreneurship over time. Based on this, through mathematical modeling analysis, simulation analysis and empirical analysis. The results show that: (1) According to entrepreneurship timing, we can divide individual's career into lifelong employment, born entrepreneurs, employment turn into entrepreneur, employment, and intermittent entrepreneurs. (2) The entrepreneurship ability, entrepreneurship income expectation, job autonomy demands, entrepreneurship opportunity perception can stimulate individual entrepreneurial motivation, and can drive the choice of entrepreneurship. However, the entrepreneurship devoted level and perceived entrepreneurial risk not only inhibit entrepreneurial motivation, but also slow down the choice of entrepreneurial opportunity. （3）Entrepreneurial ability can not only enhance the expectation of individual business income, but also strengthen the demand of work autonomy. It can also help individuals to sense and develop entrepreneurial opportunity, alleviate the fear of risk, and thus inspire individual entrepreneurial behaviors. (4) The proportion of entrepreneurship and the age of entrepreneurship appears to be u-shaped, which is that as the age increases, the proportion of entrepreneurship increases and decreases. (5) Although the entrepreneurial tendency and entrepreneurship ratio of factor driving countries and investment-driven countries are higher than that of innovation-driven countries; the entrepreneurship model of the late-developed countries is more embodied in the survival driven entrepreneurship model, so the failure rate of entrepreneurship is high and the social benefit is low. |