By scatter plot, we could easily identify that the price is climbing from January towards the end of the year for 2017 and 2018. However, year 2019 shows an abnormal pattern. There is a dramatic price increase from April to October, then the price drop sharply till the December. One reason behind it may because that Airbnb first adjusted their price higher in 2019. However, when Airbnb listing price became too high, Airbnb loose its competitive advantages comparing to hotel price. Thus, visitors no longer prefer rent a Airbnb home. Under the pressure, Airbnb might cut its increased listing price, which counts for the reason of its price declining.