There are many factors that affect housing prices, such as supply-demand ratio, economic development, residents' income changes, residents' living standards, living structure and so on. At present, many factors are relatively stable, and the influence of transportation infrastructure construction is often the most unstable factor. After the bridge was connected to the highway, a large number of residents moved out of the city center and chose the suburbs with convenient transportation. However, the construction of transportation infrastructure can not support and raise housing prices as a whole, but only play a role of "population advantage" transfer. Therefore, when considering the factors that traffic affects housing prices, population mobility should be regarded as an important factor, not just the transportation infrastructure under construction or to be built. For example, in a suburb near the subway, if the subway line will extend to a more remote direction, the population in this area may not increase, but will decrease, which may not be beneficial to the housing prices in this area. Population mobility is a direct factor affecting housing prices. The construction of transportation infrastructure is an indirect factor that affects housing prices, and it affects housing prices by affecting population mobility. On the whole, the construction of transportation facilities can adjust the price comparison of regional housing prices through the transfer of "population advantage". However, some factors also affect the transfer of "population advantage", thus affecting the price comparison among regions. These factors include: geographical location advantage, development degree, development potential, human landscape and so on. This is also an important reason for the transfer of "population advantage". Therefore, while considering other factors that affect housing prices, it is more scientific and accurate to study the population movement to judge the future housing prices in various regions than to judge the future housing prices in various regions from the construction of transportation facilities.