This study aims to describe the economic dynamics among street vendors (PKL) in Tarutung. Using a case study approach, this research identifies various factors influencing the sustainability and development of street vendor businesses, as well as the socio-economic impacts on the surrounding community. The primary focus of the study is to understand the role of PKL in the local economy, including job creation, income generation, and the challenges faced regarding government policies and business competition. Data was collected through field observation, in-depth interviews with vendors, and an analysis of relevant local policies. The findings reveal that although PKL face challenges related to regulations and market access, they play a crucial role in the economic dynamics of the region and can be key pillars in local economic development.