Levan is a microbial polyfructan; constructed from β-2, 6-fructofuranosyl main chain and β-2, 1-fructof uranosyl linked side, chains. The enzymatic synthesis of levan has been well studied for several decades. No detailed report has been made, however, to describe the degradation of levan and levan degrading enzymes; most previous reports were on unpurified enzymes. This paper deals with screenings, enzymatic properties, and classification of newly obtained levanases.