Significant research supports the notion that urban open spaces offer health benefits as a parameter for QOL to city residents through exposure to a natural environment. \"Open space is land or water area with its surface open to the sky, consciously acquired or publicly regulated to serve conservation and urban shaping function in addition to providing recreational opportunities. Present research has a descriptive- analytical method that is of applied kind. Their theory foundation is based on attribution and desk studies and field visits of related organizations. Information has been collected on their ecological characteristics using questionnaires (open and closed questions), along with interviews. Results show that all parts in the Mashhad city at the first stage have less depth than the main axles. It is necessary to say that this kind of morphology structure is a part of Iranian –Islamic cities specifications. Also results show this fact that open space areas in the Mashhad city during the years 1987–2014 have become isolated and decreased.

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