This paper researches the urban spatial development on the Two-Lake Plain (in Central China) for the past more than 2000 years, and following conclusions are obtained: 1. The urban administrative gradation has changed from 2 grade to 4 grade : 2 grade during 221BC - AD220 and AD589 - 756; 3 grade during AD220 - 589 and AD757 - 960; 4 grade during after AD960. 2. The urban development has two historical periods: the period having Jiangling as the chief city (before AD1279) and the period having Wuhan as the chief city (after AD1279), and in the 13th century, the modern urban spatial structure t...