Abstract: It is crucial to quantize the relationship between real estate and financial industries and to make countermeasures against existing drawbacks for their development. Taking Yangtze River Delta as an example, using the input-output analysis to quantize the relationship between real estate and financial industries, and comparing with that in different countries, we find that in this area, real estate industry depends too much on financial industry; the dependency is much above the international level; and to some extent, the correlation between real estate industry, financial industry and construction industry has some unreasonable factors, which lead to weaken the relationship between real estate industry and construction industry. Also, real estate industry has too weak connections with itself. There are some differences among provinces in Yangtze River Delta, and causes of these differences are complicated. In the long term, in order to solve the above-mentioned problems in or even beyond Yangtze River Delta, we should start from two directions: one is “reform and innovation”, the other is “risk precaution”.