NOVELTY - A control apparatus of internal combustion engine (1) comprises exhaust-gas-recirculation channel (14) which connects exhaust passage, intake passage (12) of internal combustion engine and modification catalyst (51) provided in exhaust-gas-recirculation channel, fuel modifier (5) which modifies exhaust gas circulating in exhaust-gas-recirculation channel by modification catalyst, reformed fuel supply part (INJ2) to supply fuel to modification catalyst, electric power supply part to supply electric power to modification catalyst, and control part (8) which controls reformed fuel supply part.    USE - A control apparatus of internal combustion engine (claimed).    ADVANTAGE - Internal combustion engine can produce hydrogen efficiently by low energy.    DETAILED DESCRIPTION - A control apparatus of internal combustion engine (1) comprises exhaust-gas-recirculation channel (14) which connects exhaust passage, intake passage (12) of internal combustion engine and modification catalyst (51) provided in exhaust-gas-recirculation channel, fuel modifier (5) which modifies exhaust gas circulating in exhaust-gas-recirculation channel by modification catalyst, reformed fuel supply part (INJ2) to supply fuel to modification catalyst, electric power supply part to supply electric power to modification catalyst, and control part (8) which controls reformed fuel supply part and electric power supply part. In the modification catalyst, endothermic reaction using heat of exhaust gas and steam in exhaust gas generates reformed gas. The control apparatus supplies the reformed gas of the generated hydrogen to intake passage of internal combustion engine.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of an internal combustion engine and fuel reforming system. (Drawing includes non-English language text).    Internal combustion engine (1)    Fuel modifier (5)    Control part (8)    Intake passage (12)    Exhaust-gas-recirculation channel (14)    Modification catalyst (51)    Reformed fuel supply part (INJ2)