Objective To explore the application status of protease spectrum analysis in breast cancer. Methods The pertinent literatures in recent ten years were screened with key words “breast cancer，diagnosis，and protease spectrum”. Results At present，the candidate markers being identified in enzyme platform were less， such as ITIH4， C3adesArg，C3adesArg△8， haptoglobin-α1，S100-A9， and so on. In addition to S100-A9，the results of markers in the different research institutes were often contradictory. There had been no large-scale applications in clinical research and more further researchs were needed to prove it’s value. Conclusions Breast cancer tissue or cells obviously express chemokines and their receptors which participate the growth， invasion， and metastasis of breast cancer，and many factors influence the activation of their signals. With the development of proteomics research progress of technology and equipment， the improvement of method and more research data， protease spectrum plays an important role in improving the early diagnosis rate of breast cancer.
