Breast Light Scattering is an imaging system for examining the benign and malignant nature of the breast. It is a combination of optical technology and ultrasound, and belongs to the auxiliary examination technology, which is commonly used in the examination and diagnosis of breast diseases. It can carry out lesion localization via ultrasound system, observe the size, shape and structure of the tumor, have higher resolution ability for relatively small breast tumors, and carry out multi-segment scanning for lesion points, so that the benign and malignant changes of the tumor can be better differential diagnosis, and make the imaging results more exquisite, which is one of the important methods for checking breast cancer. Based on the measurement of hemoglobin and the state of blood supply and metabolism of the tumor tissue, breast light scattering is a technique that can provide more accurate information for the diagnosis of the condition.