Direct selling refers to direct investment and operation by the company headquarters. This business model, which is dominated by one brand and sets up branches or subsidiaries in various places, is called the direct chain model, as opposed to the franchise chain model. Joining is a continuous contractual relationship between the head office and the franchise stores. Zhongjing Life Museum is a big health chain brand built by Zhang Zhongjing Pharmacy around "homology of medicine and food, health and wellness". Headquartered in Zhengzhou, it is directly managed by the headquarters. Therefore, Zhongjing Life Museum is directly operated.