Abstract: As a pillar industry in the entire national economic system, real estate bears heavily on the entire national economic growth and social stability. Thus, it is particularly necessary to accurately study and judge the characteristics of real estate market development. This paper constructs an evaluation system from four aspects:economic coordination, supply and demand balance, moderate investment and land control, evaluates the health of the real estate market in the middle reaches of the Yangtze River urban agglomeration from 2010 to 2018, and explores the spatial-temporal heterogeneity characteristics of the health of the real estate market. The results show that:1) In terms of time, the health of the real estate market of cities in the middle reaches of the Yangtze River tends to be better in the fluctuation period, as evidenced by coordinated conomic development, balanced supply and demand, moderate investment, decreasing land control in the fluctuation period and positive development of the real estate market in sub-city circles. 2) In terms of space, there are significant differences in the spatial evolution of the health of the real estate market in the city clusters in the middle reaches of the Yangtze River, showing a strong "core-periphery" structure with Wuhan, Changsha and Nanchang as the center. Wuhan urban circle has become the worst-hit area for the unhealthy development of the real estate market. 3) health degree of the real estate market of cities in the middle reach of Yangtze river can be divided into five types:coordinated development (type I), economic deviation (type II), imbalanced supply and demand (class III), excessive investment (class IV) and land dependence (V). The five types have a weight of 38.7%, 3.3%, 9.6%, 22.5% and 25.9% respectively by the end of the study, showing that the real estate investment is excessive, and financial dependance on land is obvious. Therefore, it is important to adhere to the policy of "housing residence instead of vicious speculation" and take control measures commensurate with specific cities to promote the steady and healthy development of the real estate market.

Key words: real estate market, health, spatiotemporal heterogeneity, urban agglomeration in the middle reaches of Yangtze River