Abstract: A spatial information hidden-search engine based on three-tier system architecture of B/S mode，is designed and developed.Through integrating some key techniques such as capturing words from screen technology，identification technology for geographic position name and web map service technology，the engine achieves instantaneous，implicit and dynamic spatial information acquiring（including graphic and literal information）.The engine expands the mode of GIS application and provides a new technology for spatial information services.

Key words: spatial information search, position name identification, map service

摘要： 基于三层B/S结构，结合鼠标屏幕取词、快速中文地名识别和网络地图服务技术，设计并实现了一个空间信息隐形搜索引擎，实现即时、隐性的空间信息（文字和图形）动态获取。该引擎扩展了地理信息系统的应用模式，为空间信息服务提供了一种全新的技术。

关键词: 空间信息搜索, 地名识别, 地图服务