Food security is closely related to the national economy and people's livelihood, and is the "greatest of the country". Ensuring the stable and safe supply of food and important agricultural products has always been a top priority in building an agricultural power. The Second Plenary Session of the 20th Central Commission for Discipline Inspection emphasized highlighting key areas, deepening the rectification of corruption in industries such as finance, state-owned enterprises, politics and law, where power is concentrated, capital intensive, resource rich, and food procurement and sales, and resolutely cleaning up high-risk, systemic, and regional corruption. Since May this year, the Fourth Supervision and Inspection Office of the Hunan Provincial Commission for Discipline Inspection and Supervision, in conjunction with relevant personnel from the Provincial Grain Related Special Administration Office and the Provincial Grain and Material Reserve Bureau, has formed a research group and conducted on-site investigations at 20 grain reserves and purchase and sales warehouses in 7 cities, 12 counties (cities), sorted out the achievements of the special rectification of corruption in the field of grain purchase and sales, proposed opinions and suggestions to effectively strengthen the normalization of supervision in the field of grain purchase and sales, and promoted the establishment of relying on institutional management of power and personnel A long-term mechanism for grain management. Pay close attention to system corruption, seriously investigate and deal with grain related issues, promote special inspections and self correction, comprehensively and deeply carry out self inspection and self correction, dig and thoroughly investigate problem clues, and quickly investigate and deal with corruption cases; Adhere to addressing both root causes and root causes, conduct practical investigation and handling of cases in the second half of the article, conduct in-depth analysis of key cases, comprehensively carry out warning education, and focus on laying a good "patch" of the system, achieving phased results. The awareness of food security has been further enhanced. Through comprehensive centralized learning, in-depth self inspection and self correction, and multiple rounds of strict supervision, the food security awareness of leaders and cadres at all levels in the province has significantly increased, withstanding multiple tests such as epidemic prevention and flood control, and the food security defense line is becoming stronger and stronger. The deterrence of investigating and handling cases is further demonstrated. The disciplinary inspection and supervision organs throughout the province insist on investigating every case and punishing every corruption, and have seriously investigated and dealt with a number of disciplinary and illegal cases in the field of grain purchase and sales. In the past three years, the disciplinary inspection and supervision organs in the province have identified a total of 727 clues to problems in the field of grain purchase and sales, and have completed 646 cases. A total of 364 cases have been filed, 704 people have been detained, 132 people have been detained, 1167 people have been involved in the case, and 116 people have been transferred to judicial organs. Further compaction of supervisory responsibilities. The grain regulatory authorities have taken the initiative to shoulder political responsibilities, combining daily supervision with special rectification, actively conducting investigations and research, leading the implementation of deepening reform tasks, actively improving regulations and systems, and blocking institutional loopholes. A total of 1494 grain related regulations and systems have been centrally cleared, revised, and improved throughout the province. The political ecology is further clarified. The awareness of discipline and law among personnel in the grain industry and their awareness of serving agriculture, rural areas, and farmers have been further enhanced, and prominent issues related to grain that have been strongly reported by the public, such as false reporting and extortion, have been effectively rectified. Taking the construction of "clean and honest grain storage" in the province as an opportunity, various grain enterprises have continuously improved their internal control mechanisms, strengthened the education and management of key personnel, and the industry is increasingly full of clean and upright atmosphere. Facing the main problems in the field of grain purchase and sales, research has found that the grain purchase and sales in Hunan Province rely on institutional management of power, personnel