The price of Envolizumab is usually around 5,500 to 6,200 a bottle. Envolizumab generally refers to Envolizumab injection, which is suitable for treating patients with advanced solid tumors that are unresectable or have metastasized, such as rectal cancer, colon cancer and so on. The price will also be slightly more expensive. The main anti-tumor principle of Envolizumab injection is that the injection is a kind of PD-L1 antibody drug, which can bind to human PD-L1 protein, block the interaction between human PD-L1 protein and receptor PD-L1, so as to lift the inhibitory effect of the tumor on the T-cells through the PD-L1 pathway, and to mobilize the body’s own immune system to resist the tumor. Envolizumab injection provides options for the future direction of tumor research, and to a certain extent improves the survival rate of patients with advanced tumors, the use of Envolizumab injection needs to be used in accordance with medical advice.