As an artificial light source, the laser has the advantages of good monochromaticity, strong directivity, strong coherence, high brightness, and high energy density. Therefore, it has been widely used in laser display, laser lighting and other fields. Since the semiconductor laser was invented, it has occupied a large part of the laser market because of its rapid development, multiple results and wide application. It can be used not only as an information carrier but also as an energy carrier. With the in-depth development of semiconductor lasers and changes in market demand, the research on the synthesis of white light sources through semiconductor lasers has become a hot spot. The emergence of semiconductor laser white light source has not only expanded new areas of laser applications but also laid the foundation for the birth of many new technologies. This article mainly introduces how the semiconductor laser white light source is produced and the difficulties in the production process. Then, it summarizes the research progress of synthetic semiconductor laser white light source at home and abroad in recent years, and analyzes its application limitations and development shortcomings. Finally, we look forward to whether the semiconductor white laser light source can be stably output in the complex underwater environment.