Chain stores refer to many small-scale, scattered retail stores with the same brand and similar goods and services. Under the leadership of the headquarters, they realize the combination of economies of scale through standardized operation. Joining is a Chinese word, which refers to the agent joining of commercial brands. Suzhou Kang Ming is an enterprise focusing on technology promotion and application service industry, and attracts users to join commercial brand projects through agency, so Suzhou Kang Ming is joining.