Sharing-economy platforms such as Airbnb and Uber have gained growing importance throughout the world. However, there are many discussions on how to regulate it and construct an adequate legal system for it. The regulation concerns directly public law as sharing-economy platforms have been accused of facilitating activities that cause nuisance to the general public. At the same time, their regulation puts at stake the constitutional rights such as property rights and the right to engage in economic activities. This panel offers an introduction to the public order regulation of the sharing economy from a constitutional and economic law perspective. We shall delve into the following issues: 1) What constitutional problems does the sharing economy raise? 2) Is the reputational system upon which the sharing economy relies, sufficient to protect public interests? 3) How does the regulation of the sharing economy affect constitutional rights?