Wave energy is being increasingly regarded as a major and promising resource since the artificial upwelling was invented. There are many different ways to convert wave energy to electricity and some other energy such as the power supply for artificial upwelling in this paper. An overview of wave energy converters in artificial upwelling application as well as the power systems and environmental energy conversions for the artificial upwelling all over the world is given in this article. Some basic principles are present, assessment and advices are shown for each category. Some suggestions of the outlook of power systems and wave energy converters in air-lift artificial upwelling application are also given.