Abstract: To study the population carrying capacity of grain cultivated land in Hebi City at present and in the future, the population and grain production in Hebi City were predicted through linear regression analysis, and three food consumption levels were set up, including subsistence, well-off and richness. Based on this, the cultivated land grain population of Hebi City was evaluated with land resources carrying capacity model. The results showed that the grain output of cultivated land in 2006-2016 could fully meet the population demand of the whole city and also had a certain surplus. In 2017- 2030, the grain population carrying capacity of cultivated land will not overload in the food consumption level of subsistence and well-off, and there will be a certain amount of grain surplus, which can feed 405000 people and 163300 people extra respectively; in 2017- 2030, the carrying capacity of cultivated land will slightly overload in the food consumption level of richness, and there will be a small shortage in grain supply of 14200-15000 t. Thus, it is of great significance to protect cultivated land quantity and improve cultivated land quality and grain yield in Hebi City in the future.