Study on Grain Demand Structure Change in Jilin Province and Its Contribution Rate to China's Food Security

In order to study the influence of grain consumption structure of Jilin province and the Chinese food security contribution rate, the research method of comparative and qualitative results show that, in Jilin Province, although a slight decrease in food consumption but relatively stable, short term will not have too much impact on food safety. But in the long run, with the increase of population, the total grain consumption will increase, which will reduce the contribution of food security in Jilin province. The rapid growth of forage and industrial food in Jilin province will have an important impact on food security contribution rate. Too much influence of grain loss and seed grain not in Jilin province food security contribution. On the basis of this, the paper puts forward some countermeasures and suggestions to ensure food security.