Purpose: The aim of this study was to investigate the harm of successful deployment of knowledge management system in urban management. Methodology: This was an applied study in terms of the purpose, and a descriptive-survey one in terms of method. The statistical population (403 ones) included all managers, deputies and experienced staff of selected municipalities in west of Mazandaran Province (Ramsar, Tonekabon, Noshahr, Noor, Amol and محمودabad) in 2018; the research was done based on data collected from 201 participants were according to the Cochran formula with relative stratified sampling method. Kolmogorov-Smirnov test, single sample t-test, confirmatory factor analysis and Friedman test were used to test the research hypotheses. Findings: Chi-square statistic in the model was 37.241, the freedom degree of the model was 100, which was approximately in the range of acceptable value. On the other hand, the fit indices of model such as NNFI, NFI, GFI, CFI and IFI were all appropriate and the RMR index was 0.083. Conclusion: According to the results of standard coefficients, t values and R2 values in confirmatory factor analysis, in all dimensions introduced in the conceptual model of the research including 1. Organizational structure, 2. Environmental factors, 3. Technology factors, and 4. Human resources, were effective as a social harm in the failure to the successful deployment of knowledge management in urban management.
