The increasing number of investigations of boiling heat transfer with liquid metals reflects the current interest in and importance of this process. Its application to nuclear power systems is important. The trend of the literature, for practical reasons, leans toward seeking answers to specific applications rather than understanding of the boiling mechanism. A review of such growing literature is desirable to disseminate the information and to interpret results of various studies. This paper reviews the major progress in experimental and analytical investigations, the evidence of agreements and disagreements between different investigators, and the difficulties in areas caused by lack of information, and it presents recommendations for future work.