The purpose of this study is to identify and prioritize corruption platform processes in the municipality of Tehran in order to reduce administrative corruption through presenting strategies and using them in mid-term programs of the organization. This study is an applied research due to the nature of the subject and its intended purposes. The method of data analysis is qualitative and thematic. For gathering the data, in-depth interviews were conducted with 28 experts, connoisseurs and senior managers from different departments of the organization, city council members and contractors or other people on contract with the municipality. In addition, focus group meetings and follow-up interviews were used to prioritize the processes. Processes related to decision making in the architectural council of regions and article 5 Commission, e-office services, Set-off (hologram, mobile density, and brokerage company), selection and appointment of managers, decision-making process in Tehran Municipal Agreement Commission, determination the density and number of building floors, issuance of votes for violation Article 100 and its enforcement, approving the implementation of the criteria on the issuance of work completion, were identified as high-priority corruption-related processes out of 22 finalized processes in Tehran Municipality, and appropriate strategies such as promoting transparency, procedural efficiency streamlining systems related processes and procedures dealing with offenders, and reforming corruptive platform in organizational and income structure were proposed for each process. It should be noted that all the strategies presented are in full compliance with the superior documents, which demonstrates the completeness of the proposed strategies for process reform.