As far as the relationship between the real estate industry and the national economy is concerned, the relationship between the real estate industry and the national economy is not only a partial and overall relationship, but also closely related and related internally. The development of real estate industry is closely related to the development of national economy. Therefore, we can understand the measures taken by our government to save the real estate market in this economic crisis. The relationship between the real estate industry and the national economy is not only the relationship between the local and the whole, but also the internal close relationship and correlation. 1, the impact of real estate growth on the national economy. The GDP of the real estate industry is an important indicator reflecting the overall development of the real estate industry. Generally speaking, if its industrial growth rate is faster than that of the whole national economy in a certain period, its contribution rate to economic growth will increase, and it will become a sunrise industry in the country during that period, and its position and role in the national economy will continue to improve. China's current real estate industry is in this state. As a new industry, in the long run, its development will play an increasingly important role in promoting the rapid growth of the national economy. 2. The impact of real estate efficiency growth rate on the national economy. The index of industrial efficiency growth rate can generally be based on industrial profit rate. After adjusting with the input-output ratio, the growth rate of industrial efficiency can be obtained by comparing the base year with the whole year. This index can reflect the quality of real estate operation and its actual contribution to the development of the whole national economy. While the number and scale of the real estate industry in China are constantly expanding, it is a key aspect to continuously improve the efficiency of the real estate industry. 3. The impact of real estate credit scale on the national economy. The scale of industrial credit can be divided into relative scale and absolute scale. Relative scale refers to the proportion of real estate industry credit in the whole society in a certain period of time. It can not only reflect the importance of real estate industry in the macro economy, but also reflect the financial support of real estate industry in the macro economy. Changes in the relative scale of real estate credit will lead to changes in the status and role of real estate in the national economy, thus affecting its strength. Absolute scale refers to the absolute value of real estate credit in a certain period, which can basically reflect the expansion, stagnation and contraction trend of real estate investment scale by comparing with the previous period or base period. The expansion of the absolute scale of real estate credit, the increase of investment and the acceleration of industrial development have promoted the rapid growth of the national economy; On the other hand, reducing the scale and restraining investment will slow down the growth of the national economy. 4. The impact of real estate demand and supply level on the national economy Because the real estate industry has a strong correlation effect, the expansion of its market demand can drive the development of other related industries. Generally speaking, the high profit rate of the real estate industry has stimulated the increase of investment and the improvement of supply level. When the market sells well, it will promote the increase of the total social supply and the total national economy. It can be seen that the analysis of real estate supply and demand level is of great significance not only to the real estate industry itself, but also to the whole national economy. Because the balance of supply and demand of real estate is a gross concept from the real estate industry itself, but from the perspective of the national economy as a whole, it participates in the process of gross balance of national economy as a relatively independent industrial sector, thus affecting the overall situation of national economy. We can see that 2009 is about to pass, and 2009 is a very difficult year for real estate. This kind of suffering is mainly manifested in the rapid decline of real estate sales, the gradual decline of house prices and the rapid rise of housing vacancy rate. On the other hand, the government's real estate policy has undergone tremendous changes, such as maintaining the stable and healthy development of the capital market and the real estate market. It is necessary to combine satisfying residents' desire to reasonably improve their living conditions with giving full play to the role of real estate as a pillar industry, increase the supply of affordable housing, reduce the burden of residents' reasonable purchase of self-occupied ordinary commodity housing, and give full play to the positive role of real estate in expanding domestic demand. In other words, the core of China's real estate market is the owner-occupied market, the people's livelihood market and the market that fundamentally improves the basic conditions of residents. And this is the basis for the healthy development of real estate in the future.