Immuno therapy also said to be biologic therapy is a cancer treatment designed to boost the immune system to fight against cancer. It uses substances that are in the body or in the laboratory to improve or restore immune system function Types of immuno therapy includes Monoclonal antibodies Non -specific immuno therapies, Oncolytic virus therapy, T-cell therapy, Cancer vaccines When there is any entry of foreign organism in to our body then body’s immune system detects the harmful organism and produces antibodies. Antibodies fight against infection. Monoclonal antibodies can be made in the laboratory. Monoclonal antibodies can be used for targeted therapy to block an abnormal protein in cancer cell.