Population transfer is a complicated social phenomenon which concerns the development of national welfare and people's livelihood and the credit system of the food production and processing industry. This study investigated the dynamic mechanism of population transfer and its effect on the food processing industry, applying theories like urbanization theory, regional imbalanced development theory, regional balanced development theory, comprehensive and coordinated development of urban and rural areas theory. Based on the practical situation of Henan province, the study offered some countermeasure suggestions for the existing problems in the credit systems of the food industry in Henan and discussed how to establish appropriate credit systems, thus to help food security and sustainable development of Henan.