中文摘要：

作为青海省会和青藏高原的区域中心城市，西宁在西部大开发中具有重要的战略意义，遵循历史发展脉络，分析西宁城市空间结构的演化历程，并对其影响因素和演化特点进行全面阐释，认为地形基础、工业建设和房地产开发是影响城市空间演化的主要因子，城市空间结构表现出沿交通线扩展，呈单中心放射状形态，并与周边城镇构成不完善的核心——边缘结构。

英文摘要：

As the capital of Qinghai Province and the central city of Qinghai - Tibet Plateau, Xihing has an important strategic status in China＇s western development. The process of urban spatial structure evolution was analyzed ; its affecting factors and evolution features were elucidated. There are three mainly factors： the topographic basis, the industrial construction and the property development. Urban spatial structure radiatly expanded around a single center along the main road. The urban and town system apparented an incomplete core - periphery structure.