By collecting human autoimmune cells and increasing their quantity by thousands of times through in vitro cultivation, the targeted killing function of immune cells is enhanced. Then, they are infused back into the human body to kill pathogens, cancer cells, mutated cells, etc. in the blood and tissues, breaking the body's immune tolerance, activating and enhancing the body's immune system, with dual functions of treatment and protection. Autologous immune cells mainly include cell therapies such as NK, DC, CIK, DC-CIK, and adaptive T. Taking Neo CIK immune cells as an example, cytokine induced killer cells (CIK) are a special T cell group; CIK has strong proliferative ability and strong cytotoxic effect on cells. Neo CIK cells have a strong ability to recognize tumor cells and can accurately attack tumor cells, but they will not harm normal cells.