The invention relates to the field of agriculture and animal husbandry, in particular to a green ecological circulating utilization mode combining barley planting and cow cultivation, namely a whole-crop ensilage barley and cow raising circulating utilization mode. The whole-crop ensilage barley and cow raising circulating utilization mode includes barley planting, barley ensilage, cow cultivation, cow manure fermentation in a biogas tank, returning of biogas slurry organic fertilizer to field and planting and raising combined cow feeding. The whole-crop ensilage barley and cow raising circulating utilization mode has the advantages that whole-crop ensilage barley is provided, the whole growth period of the barley does not need fertilizing, whole-crop ensilage is performed on the cut barley to produce green and organic ensilage forage grass to feed cows so as to produce high-quality dairy products; cow manure is fermented through the biogas tank to produce high-quality biogas slurry organic fertilizer to return to the field, chemical fertilizer use amount can be reduced, pollution can be reduced, cost can be lowered, the environments and soil can be improved, and the green and ecological virtuous cycle that 'the cows are fed by the grass, people drink the milk, the cow manure is returned to the field, and organic forage grass is produced' is achieved.