Curdlanaqueous dispersion shows unique gel formation behavior, a thermo-reversible or thermo-irreversible gel upon heating. Molecular parameters have been studied inDMSOand alkaline solutions and by observation in solid state. Because of its unique gelling behavior, curdlan has been the subject of much investigation especially for applications in the food industry. Recently rheological and thermal properties and conformational, morphological analysis as well as the physiological functions such as antitumor and anti HIV activities have been studied. In the present chapter, physicochemical properties of curdlan are reviewed and the structural characterization of curdlan is also emphasized. Most recent applications of curdlan in fish and meat products are also reviewed.Curdlanaqueous dispersion shows unique gel formation behavior, a thermo-reversible or thermo-irreversible gel upon heating. Molecular parameters have been studied inDMSOand alkaline solutions and by observation in solid state. Because of its unique gelling behavior, curdlan has been the subject of much investigation especially for applications in the food industry. Recently rheological and thermal properties and conformational, morphological analysis as well as the physiological functions such as antitumor and anti HIV activities have been studied. In the present chapter, physicochemical properties of curdlan are reviewed and the structural characterization of curdlan is also emphasized. Most recent applications of curdlan in fish and meat products are also reviewed.