Aspergillus oryzae transformants which produced Bacillus licheniformis thermophilic alpha-amylase (optimum temperature, 76 degrees C; optimum pH, 9) were bred using Aspergillus nip er No. 8AN promoter. When an A. oryzae transformant was grown on rice koji and wheat bran koji, 150g total rice was liquefied by koji representing 13% of the total rice and by extraction of 10g wheat bran koji, respectively. When small-scale brewing tests with liquefied rice and the transformant koji or extraction of wheat bran koji were carried out, the brewing profile and sake analysis values were similar to the results of tests carried out using a control enzyme (CP-40). The results indicate that A. niger No. 8AN promoter can be applied to the production of heterologous proteins such as B. licheniformis thermophilic alpha-amylase in A. oryzae.