Disclosed is a method for producing biodiesel, the method including generating fatty acid alkyl esters and glycerol by a transesterification reaction of oil and an aliphatic alcohol in a presence of a refractory porous material. The method may have a high reaction rate,and a high FAME conversion, and the method may be performed by a continuous process. Further, according to the method, high-purity fatty acid alkyl esters and glycerol may be produced regardless of free fatty acids (FFAs). Further, since a catalyst is not used in the method, the overall process time and cost may be saved, and the method is environmetally friendly.