傳統上使用理資訊系統之專業軟體開發查詢系統時,常造成建置成本高昂、佔用太多系統資源、及與其他資訊系統整合不易等問題。為了解決這些缺點,本研撰寫圖形使用者介面發開語言,以元件式地理資訊技術整合關聯式資料庫管理系統,研發完成一套友善化的頭前溪流河川水資訊查詢系統,可提供為建河川災害防治支援系統之基礎。實作結果顯示,本系統使用者不需購置地理資訊系統軟體,就能使用所有本系統提供之圖文資料交叉查詢功能。The problems of high construction cost, tremendous system resource, and being difficult to be integrated with other information systems occur frequently while using a geographic information system software. To overcome these problems, this study is aimed to develop a user-friendly hydroinformatic query system for Tour-Chien River Basin using the graphic user interface language, which integrates both with the object geographic information technique and with the relational database management system. This system can provide a basis for building up the support system of river disaster prevention. Besides, the result of this study demonstrates the users can employ all GIS option from this system without using and GIS software