City as highest symbol of human civilization has a fundamental role for all citizens. But concentrating only on the quantitative aspect of cities has created a bio polar character in most of the developing countries. So the concept of quality of life deals with the problems of urban residents and promotion of his qualitative aspect of living. In fact this paper tries to explain the quality of life in the eroded fabric of the Miandoaab city on the base of four socio-economic, physical-environmental and mental-subjective indexes. The methodology of the research is based on descriptive-analytical methods by conducting a field work to complete the given questionnaires. Cochran technique was used to determine the number of samples, then Entropy and SAW techniques were applied to analysis and rank the different neighborhoods. The results revealed that the index of green space with score of 0.477 showed clear difference with other indexes. In general, the mean of each factor was calculated which the factor of urban service and facility scored 0.138 and placed in first rank as residents were dissatisfied regarding to this index. It seems that provision of urban facilities should be considered more seriously in future planning. The findings from SAW technique revealed that neighborhoods of 19, 20 and 21 had an appropriate condition while the neighborhoods of 10, 11 and 12 placed the lowest rank.