Abstract: Abstract:Based on the correlation data of grain production in Baoji County from 1995 to 2007, the statistical ananysis is made to analyze grain production with the variation characteristics of the cultivated land, population, and other influencing factors. The results indicates that the cultivated land area of Baoji city and the cultivated land area per capita showed the downtrend, the program for the conversion from cropland to forest and grassland is the main reason for the cultivated land decrease; The total and per capital grain outputs have on the fluctuant rise; The annual change rate of overall grain output is highly consistent with the grain planting ares, however, there was no complete synchronization in the trend of inter-annual change ratio between cultivated land area and food production, Improvement of unit yield grain production could not only counteract the food reduction, which was caused by the reduction in cultivated land aea, but also improve the food total production greatly. However, the amount of cultivated land was still an important actor of grain total production stabilization.