Common Rail Diesel Engine Electronic Fuel Injection technology is a new technology, because it integrates computer-controlled technology, modern sensor detection technology and advanced fuel injection in a structure. The main features of the technology are: the application of advanced electronic control devices and equipped with high-speed Solenoid Valve; way using common rail fuel supply and a high-speed high-frequency electromagnetic on-off valve, control flexible system architecture to facilitate transplantation, to a wide range. Research and development of this technology is hot: High Pressure Common Rail System to resolve the constant high-pressure sealing; solution High Pressure Common Rail system, the common rail pressure fluctuations caused by small volume injection uneven; solution High Pressure Common Rail System Multi-MAP (three-dimensional control data table) optimization problem and solution structure, switching frequency electromagnetic valve design and manufacturing process of the key technical issues. Common Rail Fuel Injection technology can help reduce diesel exhaust emissions, and to improve noise, fuel consumption and other aspects of the comprehensive performance; it conducive to the global environment, but it also will promote diesel engine industry, the auto industry and with the development of related industries.