Prostate cancer is the most common malignant tumor in men of western countries and its incidence is increasing in China. However,the traditional Methods of screening and diagnosing of prostate cancer are of limited value. Multiparametric magnetic resonance imaging (MRI) is an examination which combines morphologic sequences with one or more functional sequences. Multiparametric MRI can not only display the anatomical structures and morphologic changes of organs, but also reflect some histological components, providing pathophysiological and biochemical information of tissues and guiding prostate targeted biopsy at the same time. These advantages give multiparametric MRI high application value in the diagnosis and evaluation of prostate diseases. This review summarized the recent progress in multiparametric MRI diagnosis of prostate cancer.