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Global climate disasters happen frequent, agricultural production has led to great instability. The drought disasters are the most serious in these climate disasters. However, agricultural water shortage areas lack of response mechanism to drought disasters. To resist these sudden drought events and uncertainties, this paper has designed a mode of operation of virtual water futures. Then, we analyze the procession of the virtual water futures balancing generalized regional water, as well as elaborated virtual water futures how to hedge the grain yield loss risk. At last, we conclude that virtual water is an effective supplement for agricultural water, agricultural virtual water futures hedging can protect the region's food supply and reduce agricultural losses.