This study evaluated the effect of green business strategy on sustainable entrepreneurship development in Enugu State. The objectives were to determine the effect of environmental assessment on opportunity identification of entrepreneurs and to ascertain the effect of recycling of waste materials on product innovation of entrepreneurs. A simple random selection of 181 sample size of a population of 331 was used. A questionnaire structured in a Likert scale were administered to the respondents. Chi-square statistical tools was used to test the hypotheses with the aid of SPSS Version 28. The findings of the study revealed that environmental assessment had a statistically significant effect on opportunity identification of entrepreneurs in Enugu state; that recycling of waste materials had a statistically significant effect on product innovation of entrepreneurs in Enugu state. The study concluded that incorporating environmental and sustainability considerations into business operations can lead to improved identification and evaluation of potential business opportunities and that entrepreneurs who adopt a mission to promote environmental sustainability are more likely to generate innovative and environmentally-friendly business ideas. It was recommended among other things that policymakers, investors, and entrepreneurs should adopt environmental assessment in entrepreneurship.