中文摘要：

亚洲国际化城市大都具有人口高密度聚集的特征，且中心区存在着规模、等级及形态的较大差异，表现出一定的规模门槛规律，对我国城市化发展具有较大的借鉴价值。本文在现状调研及数据矢量化的基础上，逐项定量剖析亚洲17个国际化城市29个中心区的空间形态，对其规模、等级及格局所涉及的用地规模、建设规模、开发强度、街区大小、道路密度等指标进行了比较研究，探寻其间存在的门槛规律，并对其空间形态类型进行分类研究，提出相应的数据簇群；进而揭示在非市场经济因素限制的基础上，城市经济等级规模、服务产业业态结构以及交通方式的支持是促使亚洲国际化城市中心区形成门槛特征及不同形态模式的主要因素。

英文摘要：

Most Asian international cities have characteristics of high population density aggregation; moreover, remarkable differences can be seen among city centers in size, grade and morphology, showing some threshold rule, which has great reference value for the development of China＇s urbanization. This paper, based on the status investigation and data vector, analyzes the spatial form of 29 city centers in 17 international cities of Asia, and compares the indicators concerning the scale of land use, construction scale, development intensity, block size, roads density, etc., in order to study the threshold rule among them. Moreover, the paper classifies the spatial morphological types and puts forward corresponding data clusters. In the end, the paper reveals that on the basis of the restrictions by non-market economic factors, the scale of urban economy grade, the service industry structure, and the support by transportation means are the main factors for the formation of threshold characteristics and different patterns of the Asian international central districts.