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This research seeks to provide an optimal model for gaining public trust in the Complaints System and Inspection Agency's announcements.In this research, a survey method and a researcher-made questionnaire were used. The study population was consist of customers and users of the complaint handling system and the organization's inspection reports in Mazandaran province comprising equal numbers of 24884 people. The sample size was 378 persons. Questionnaires was distributed based on systematic sampling method. The results resulted in the formulation of a model.The results of the compilation model for explaining the changes in the success rate of public trust in the inspection system complaints system shows that significant effect of external variable on customer characteristics and internal variables of technology, Website quality and organization features  on public trust in the system. The overall results show that by improving the quality of the website, the status of the technology and features of the organization can be expected customers' characteristics are more likely to be met, and their level of trust in the complaints system will increased.