Recent studies have demonstrated the importance of the non-protein coding part of human genome in carcinogenesis and metastasis of prostate cancer. Long non-coding RNAs (lncRNAs) play a key regulatory role in prostate cancer biology. LncRNAs are dysregulated in prostate cancer and the expression levels of certain lncRNAs are associated with the recurrence, metastasis and prognosis of cancer. It is also proved that lncRNAs, as oncogenes, can promote carcinogenesis and development of prostate cancer. This review focuses on the progress in the studies of lncRNAs in prostate cancer.