Many of this treatments for Breast cancer (BC-carcinoma), including surgery, radiation, and chemotherapy, haven't been effective in diminishing mortality rates, but bacterial mediated Antibody-immunotoxins has become one in all the best approaches to cancer treatment. Under these exceeding background, the present review, based on increasing mini report on bacterial mediated immunotoxins for breast cancer treatment. Various methodology suggest that, antibody therapies has been an central component in the association of malignant disease. Antibodies be capable of block the tumour growth factors or their specificity receptors and activate the immunological attack on the tumour microenvironment especially in breast cancer cells leads to tumor regression, and are used to deliver payloads such as radioisotopes, cytotoxic drugs or toxins. Immunotoxins are a new class of antitumour agents consisting of tumour selective ligands (generally mono clonal antibodies) linked to highly toxic protein molecules such as non-pathogenic bacterial species or programmed bacteria and take the advantage of the exquisite specificity of antibodies to selectively target drug delivery and the potency of toxins to kill the target cells. Currently, the attenuated bacteria as antitumor agents and vectors for gene directed enzyme prodrug or antibody conjugate therapy or immunotoxin have emerged as potential strategies.