Building a suitable database system can be very useful in terms of data querying and application. To integrate various and vast amount of textual documents, tables, engineering drawings, GIS graph and photo images of the Taoyuan Irrigation Association, we construct an infrastructure. First, we classify all these data by type and/or function to store them in a hierarchical directory tree. Then, we define standard format of each type and transform all we have got to the standard. Finally, we develop three programs with uniform interfaces to help users retrieve and manage these data easily. There are (1) database query program, (2) photograph management program, and (3) association log editing program, respectively. Our programs provide a simple and elegant interface to integrate all things together. We believe this study can enhance integrating all the information and improve the official furctions computerization of the irrigation association.