NOVELTY - Device comprises electrolytic groove to produce hydrogen oxygen mixed gas by electrolysis of water. The electrolytic reactor is provided with three spaced electrodes, where the outermost of the two electrode pieces are connected to anode or cathode of the power supply. The electrode tab is located in the middle relative to the negative power supply and is connected to anode or cathode to form two sets of positive and negative electrode. The multiple spaced block chip and neutral electrode chip are respectively provided between positive and negative electrode chips.    USE - Device for controlling intelligence, saving energy and reducing emission.    ADVANTAGE - The device is safe to operate, and has simple structure, color touch screen design and intuitionistic logic.    DETAILED DESCRIPTION - Device comprises electrolytic groove to produce hydrogen oxygen mixed gas by electrolysis of water. The electrolytic reactor is provided with three spaced electrodes, where the outermost of the two electrode pieces are connected to anode or cathode of the power supply. The electrode tab is located in the middle relative to the negative power supply and is connected to anode or cathode to form two sets of positive and negative electrode. The multiple spaced block chip and neutral electrode chip are respectively provided between positive and negative electrode chips. The neutral electrode chip in its adjacent positive/negative electrode chip has negative zone or positive zone. The electrode chip and the neutral electrode chip are completely or partly immersed in water. The water tank (6), the bottom of the tank and the electrolytic groove are connected to the reactor. The top of the tank is connected to vehicle engine combustion chamber through a conduit. The inlet pipe (8) comprises electronic control device comprising electronic display and input device, the intelligent digital controller (1), pulse width controller (3) and power relay (4), where the electronic display and the input device are connected to the intelligent digital controller for inputting commands and display parameters.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an emission reduction device.    Intelligent digital controller (1)    Pulse width controller (3)    Power relay (4)    Water tank (6)    Inlet pipe (8)