Taking Heilongjiang Province as the study area,analyzed the change features and causes of cultivated land resource quantity and foodstuff yield in Heilongjiang Province from 2000 to 2013. Furthermore,using the minimum cultivated land acreage per capita and cultivated land pressure index model,calculated the pressure index of cultivated land in Heilongjiang Province and its 13 prefecture level cities during the 14 years,analyzed its spatial-temporal characteristics of pressure index of cultivated land and level of food security.The results showed that:(1)From 2000 to 2013,changes in the quantity of the cultivated land resource in Heilongjiang Province presented different trends:from 2000 to 2002 the quantity of cultivated land resource decreased slowly;from 2002 to 2006 the quantity of cultivated land resource increased rapidly;from 2006 to 2013 the quantity of the cultivated land resource increased steadily.(2)From 2000 to 2013 the total grain output,grain yield per unit area and grain output per capita in Heilongjiang Province all rose in fluctuation.Their change trends were similar.(3)From 2000 to 2013 the cultivated land pressure in Heilongjiang Province generally declined.In 2003,the cultivated land pressure increased because of the changing of climate and sharply decreasing of grain output.The food security showed an unsafe trend.In the rest of the years,the cultivated land pressure declined year by year,and the food security situation of Heilongjiang Province was well.(4)There were great differences in the cultivated land pressure among its 13 prefecture level cities in 2013:highest in Daxinganling and Yichun,which are both forest industry cities,lower in Hegang and Qitaihe,which are both coal-mining cities,the other cities had no cultivated land pressure basically.