The Yangtze River City Cluster is biggest economic zone of China，the GDP of Yangtze River City Cluster reached 23.7 trillion in 2019. The permanent resident population was 1.54 trillion，the net inflow of population was 22.41 million，and the urbanization rate was 67.39% in 2018. The excellent industrial structure，large floating population，expensive house price and the policy dirction of renting and purchasing cause the large housing rental demand of Shanghai，Nanjing，Suzhou，Hangzhou，which are main cities in Yangtze River City Cluster. In the next coming years，the number of rental housing will increase steadily with the growing market demand. The housing rental system will be continuously improved with policy supporting and supervision. Those cities are all core cities with advanced economy in Yangtze River City Cluster，the high resident income support the renters could higher rent price. It also provides much opportunity for the rental apartment brands to do product diversification and explore business model.