Danjiangkou reservoir resettlement for the south-to-north water diversion middle route is 34.5 million. It is an important task in the south-to-north water diversion middle route project. The research and development of the migration image database system has important significance to the management and utilization of the valuable migration data. This paper discusses the framework, main functions and key technologies of migration image database system. According to the situation of immigrants in Henan Province, we develop the image database system of Danjiangkou immigration for the middle route of the south-to-north water transfer project. This system will promote the modernization of project management, and it can be applied in the image management of similar projects.