PROBLEM TO BE SOLVED: To provide an enhancer of cell surface presentation or extracellular secretion of a hydrolase for obtaining the hydrolase suitable for the cell surface presentation or extracellular secretion in a eukaryotic cell.SOLUTION: In an enhancer of extracellular expression of a sugar hydrolase in a eukaryotic cell, a peptide having a specific amino acid sequence or one or more amino acid sequences that have 55% or higher identity with the amino acid sequence is used by fusing to the sugar hydrolase.