The level of agricultural insurance mainly focuses on the relationship between agricultural output and agricultural insurance, emphasizing the agricultural output guarantee that agricultural insurance can provide. To obtain the insurance protection for agriculture, the agricultural industry needs to invest certain insurance premiums and pay corresponding costs. Therefore, the study of agricultural insurance guarantee needs to further analyze the relationship between agricultural insurance amount and agricultural premium input, and measure how much premium input is needed for agriculture to obtain a certain level of risk protection or how much risk protection can be obtained under certain premium input conditions, that is, the input-output efficiency of agricultural insurance guarantee.