Entrepreneurship, or what we popularly call business, is a recent phenomenon. As an innovative and dynamic business activity of creatively inspired people, entrepreneurship is of key importance for modern economic structures, regardless of the level of development they have reached. Their common feature is doing business in conditions of rapid changes, uncertainty and risk, which requires a new approach to business, new business orientations and strategies. The greatest effects and best results in such conditions are achieved by entrepreneurs and growing companies that cultivate entrepreneurial management. The green economy encourages development, is inclusive and promotes social equality and takes care of environmental protection. The subject of the paper is the phenomenon of entrepreneurial green economy, as an innovative economy based on knowledge. The paper explains the importance of entrepreneurship/entrepreneurs for green economic growth and development. Also, the paper illustrates the entrepreneurial green environment and emphasizes the dimensions of contemporary green entrepreneurship. In addition to 308 ”Challenges of Digitalization in the Green Economy” Belgrade, October 30th, 2025 pointing out the phenomenon of entrepreneurial green economy, it also points out the basic dichotomy of the modern economy (mass vs knowledge economy).