The idea of simulating nature and its impact on sustainable design is a useful idea to maintain ecological balance, which is a vital subject in the face of the phenomena that threaten our planet. The research discusses the effect of architectural thought on the simulation of nature and its impact on the sustainability of the urban environment. Which aims to measure and evaluate the simulation of modern environmental projects of nature in the Arab environment through compatibility with the principles and ideas of nature simulation architecture, and then practical application of the evaluation model to measure the nature simulation architecture on some projects The study ends with a comparative analysis of the selected projects in order to identify the most simulated nature and use it as a model for measuring environmental projects in the Arab region.