Multiple factors affect the livability of a place, among of are the presence of people, mixed use, housing, safety and security, sense of belonging, efficiency, and the environment. The natural environment is a prerequisite for health, hence it plays an essential role in livability. Mashhad as the second most populous and the largest religious city of Iran hosts large number of domestic and foreign pilgrims annually. The main goal of this research is analyzing urban livability based on environmental indicator in Mashhad metropolis. The sample of this descriptive-analytical study includes 402 participant, chosen from Mashhad metropolis with the population of 2766258. To investigate the urban livability in terms of environment, objective indicators and subjective index (questionnaire) were analyzed. Firstly, Entropy model was used to determine the weight of each index, which is as follows: Carbon monoxide = 0. 0035, particulate matter (PM2. 5) = 0. 5974, sulfur dioxide = 0. 0122, nitrogen dioxide = 0. 0019, ozone pollutant = 0. 0162, air quality index (AQI) = 0. 0038, per capital green space = 0. 2515, noise pollution = 0. 0394, household waste = 0. 0534, and subjective index = 0. 0029. Zone 9 of Mashhad metropolis is the best zone in terms of environmental indicator, followed by Zones 7 and 8, respectively. By contrast, Zones 1, 2 and 6 have the worst conditions in terms of environmental indicator, respectively.