Drying is one of the important methods of storage, processing and production of algaes. Different drying methods have great influences on dehydration efficiency, energy consumption and quality of algaes. This paper analyzes the characteristics, research and applications between using the traditional drying technique and new drying technique for algaes. Researches showed solar-energy drying technique can fully realize the green and environmental protection, an solve the problem of solar energy discontinuity when working together air-source heat pumps; superheated steam-drying products are of high efficiency, low energy consumption, having good rehydration of algaes after drying; vacuum freeze-drying products are of high quality and can maintain the nutrition and functional components of algaes; the far-infrared heating technique is used to dry kelps, compared with the hot air drying, can shorten the drying time and reduce the energy consumption; for drying gracilaria with microwave vacuum drying technique, drying time decreased by 70% than that of air drying. Finally, in this paper, the problems existed in the algae drying techniques and equipment are summarized, the development trends of domestic algae drying techniques and equipment are discussed, and measures and suggestions are put forward.