The aim of this study was to investigate the pathology of complaints in rural cooperatives and provide solutions to reduce them, in two stages of team analysis and survey with a sustainable rural development approach in an exploratory and descriptive manner in 2021. The statistical population in the first stage was 23 heads of departments, managers, board members and inspectors of rural cooperatives in the province who were selected by sampling chain reference (snowball method) and in the second stage 200 employees of cooperative offices, labor and Social welfare of the province and members of cooperatives that were selected by stratified random sampling. The data collection tools in the first stage were in-depth interviews and in the second stage, a researcher-made questionnaire resulting from the first stage. For data analysis in the first stage, the Theme analysis method and Atlas-ti software in 6 stages and in the second stage, the first and second confirmation factor analysis tests were used with the help of Amos software. According to the findings of the research, the factor "lack of financial transparency" with a path coefficient of 0.744 had the greatest effect on the occurrence of complaints in these companies. After this factor, "weakness in supervision and control" factor with a coefficient of 0.714, "weakness in management" factor with a path coefficient of 0.592, "preference for individual interests" factor with a path coefficient of 0.568, "not being competitive" factor with Path coefficient of 0.53, "revision of laws" factor with a coefficient of 0.521 and finally "limits and authority" factor with a coefficient of 0.312 were respectively identified as the most important and influential factors of complaints in rural cooperative companies. Based on this, it is suggested to pay attention to the conflict of interest in these companies. Also, continuous monitoring and necessary inspections and consideration of the balance sheet and performance and profit and loss accounts, the proposed budget and the reports of the board of directors to the general assembly should also be reviewed.