Abstract: The source of hydrogen for the start-up of continuous catalyst reforming unit, mechanism and process flow of hydrogen-producing technology using naphtha or refined naphtha, investment of hydrogen-producing technology etc. were discussed. Combined with the start-up of two sets newly built hydrogen production device of 600×10³ t/a continuous catalyst reforming unit, the two kinds of start-up hydrogen-producing scheme were compared and analyzed. Conclusions are drawn as follows: If the start-up hydrogen is difficult to get, a set of hydrogen-producing device for unit start-up using naphtha or refined naphtha may be increased. Hydrogen-producing device using refined naphtha is suitable for the refinery with enough refined naphtha. Otherwise, hydrogen-producing device using naphtha should be preferentially considered. The catalyst cost accounts for a high proportion of about 67.48% of the total investment for hydrogen-producing technology.