The Taiwanese real estate market has been lively for a long time, leading to a continuous increase in housing prices. The government has implemented a series of corresponding policies to balance market supply and demand. This study aims to explore the relationship between housing market policies and transaction volume and prices in the real estate sector. By collecting data on transaction quantities and prices in the real estate market during the implementation periods of different key policies, we compare the trends in transaction volume and prices before and after the implementation of various cooling measures. We analyze the impact of current policies on transaction volume and prices, explore the differences among policies, assess their effectiveness, and present the limitations of the research findings. The results of this study will help provide a clear and intuitive understanding of the impact trends of housing market policies on transaction volume and prices. They will also offer policymakers and market participants insights for future observations and policy improvements regarding the real estate market.