Abstract: Expanding areas and improving standards of cereal insurance is an important part of the exploration of policy-based agricultural insurance in recent years. Based on the data of CRRS, we analysed the current situation and characteristics of cereal insurance development, and found that the breadth and depth of cereal insurance coverage still need to be expanded, the lack of awareness of risk management is one of the important reasons for the low motivation of cereal farmers to participate in insurance, and the poor availability of agricultural insurance services is the main problem of the lack of effective supply of cereal insurance. At the same time, the poor availability of agricultural insurance services is the key problem for the lack of effective supply of cereal insurance, and the increase in the insured amount of cereal insurance does not necessarily mean an improvement in the level of protection. The imprecision of underwriting and claims may lead to high insurance losses. The increase in the insured amount of cereal insurance does not necessarily mean the improvement of the protection level, and the imprecision of underwriting and claims may lead to the failure of high protection insurance to effectively guide the large-scale operation. Therefore, we should further improve the insurance-against-risks system of the food industry at the top level, establish a diversified development mechanism of the agricultural insurance market to effectively serve the construction of a strong agricultural country, promote the innovation of the agricultural insurance system to improve the availability of cereal insurance, optimize the ecology of the agricultural insurance industry and promote the construction of a diversified risk management organization system for the food industry, break down the institutional and technological barriers that hinder the development of agricultural insurance, and promote the improvement of the underwriting and claims handling of the agricultural insurance industry to enhance the protection level. It will also promote the agricultural insurance industry to enhance the accuracy of underwriting and claim settlement, and effectively improve the level of insurance protection for cereals.