Abstract: In the past year, shared bicycles have quickly gained popularity and penetration in large and medium-sized cities throughout the country with advantages such as low rental prices and free and convenient parking. It is undeniable that the emergence of shared bicycles has brought great convenience to people's short- distance travel and effectively alleviated the“last mile”transfer connection problem. However, problems such as over- distribution by enterprises and random disposal by users have been highlighted, and the phenomenon of“siege-ridden”bicycles has occurred from time to time, bringing new challenges to urban management. At the same time, with the closure of many shared bicycle companies, the deposit could not be returned to the users in a timely manner. The issue of deposit security again caused the society to question the sharing of bicycles. This article focuses on two issues in the process of development of shared bicycles that are over- discharged, disorderly parked, and deposit safe, and analyzes the deep- seated causes of the problems. Based on the actual experience of local supervision, the relevant policy recommendations are proposed.

Key words: sharing economy, shared bicycles, shared bicycles in disorder, security of deposit