Breast cancer is a serious threat to women's health and quality of life.MRI is an important tool in the diagnosis of breast diseases.With the improvement of software and hardware technology in recent years,more and more quantitative features of MRI have been found,and show greater advantages over non-quantitative features such as morphology.In this article,we briefly reviewed the application of MRI quantitative analysis methods,including conventional MRI sequences,MRI new techniques and methods,and MRI radiomics and deep learning,in the differential diagnosis of benign and malignant breast lesions,the efficacy of adjuvant and neoadjuvant therapy,and prognosis.At the same time,several problems were put forward.The era of accurate diagnosis and treatment of breast cancer has put forward higher requirements for MRI research.It is hoped to inspire researchers to further explore the quantitative features and quantitative analysis methods of MRI in the future,combined with non-quantitative features,to promote the application of MRI in the diagnosis and treatment of breast cancer,promote clinical transformation,and improve the survival time and quality of life for breast cancer patients.