NOVELTY - Hydrogen making machine comprises front-end and rear-end plates arranged at two ends of hydrogen making machine for locating and fastening electrolytic tank; front-end and rear-end electrode plates arranged between front-end and rear-end plates; film electrode (5) arranged between electrode plates; middle electrode plate (6) arranged between front-end and rear-end electrode plates and provided with water inlet hole at position corresponding to water inlet hole; and air outlet hole at position corresponding to air outlet hole.    USE - Hydrogen making machine.    ADVANTAGE - The configuration of middle electrode plate can form several sets of electrolytic tanks to improve hydrogen production efficiency. The number of electrolytic tank can be freely increased or reduced based on requirements of hydrogen production amount. The radiating holes are arranged on middle plate, thus improving radiating performance of solid electrolyte electrolytic tank and prolong service life of products.    DETAILED DESCRIPTION - Hydrogen making machine comprises front-end plate (1) and rear-end plate (2) arranged at two ends of hydrogen making machine for locating and fastening electrolytic tank; front-end electrode plate (3) and rear-end electrode plate (4) arranged between front-end and rear-end plates; film electrode (5) arranged between front-end and rear-end electrode plates, such that outer side face of front-end electrode plate is appressed with inner side face of front-end plate; middle electrode plate (6) arranged between front-end and rear-end electrode plates and provided with water inlet hole at position corresponding to water inlet hole; and air outlet hole at position corresponding to air outlet hole. The outer side face of rear-end electrode plate is appressed with inner side face of rear-end plate. The front-end and rear-end electrode plates are respectively connected to positive and negative electrodes of power source. One end of rear-end electrode plate is provided with water inlet hole. The inner side face of rear-end electrode plate is provided with groove distributed in straight strips that is interconnected to water inlet hole. The front-end electrode plate is provided with air outlet hole. The inner side face of front-end electrode plate is provided with groove distributed in straight strips that is symmetrical with rear-end electrode plate and interconnected to air outlet hole. The two side faces of middle electrode plate are provided with groove distributed in straight strips that is symmetrical with front-end electrode plate and rear-end electrode plate. The film electrode is arranged between middle electrode plate and front-end electrode plate and between middle electrode plate and rear-end electrode plate. The film electrode is provided with water inlet hole and air outlet hole. The film electrode is connected to inner side faces of front-end electrode plate and rear-end electrode plate. The film electrode is hermetically connected to side face of middle electrode plate. The hydrogen making machine also comprises dispersing mesh arranged between film electrode and side face of middle electrode plate. The middle electrode plate is provided with radiating passage (8).    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of hydrogen making machine.    Front-end plate (1)    Rear-end plate (2)    Front-end electrode plate (3)    Rear-end electrode plate (4)    Film electrode (5)    Middle electrode plate (6)    Radiating passage (8)