Business district is the mechanism linking merchandises and consumers. It is constructed by many neighboring stores. Therefore business district is a collective unit of lateral stores linking vertical product flows. This paper selects Chung-Cheng Road (Chung-Li) as empirical site for field observations. Findings indicate that streams of people divide, shape the district significantly. Types of the passage, appearing points, and ending points determine routes of the streams. However, the characteristics of stream of people can be changed by specific anchor stores or collective features of small stores. Stream of people and stores interactively influence each other’s characteristics.