Through the simulation analysis for the dynamic characteristics of supply pump cam of electronic unit integrated pump system (IEUP); using fuzzy control strategy, to design fuzzy controller, to realize integrated control of the multi-body model and the fuzzy control strategy, to analyze the working parameters of affecting dynamic characteristics of solenoid valve in Matlab/Simulink environment; using the aid of simulation software Hydsim, to establish the model of fuel injection system of electronic unit integrated pump and to analyze it; through the comprehensive analysis of the fuel injection system to get the parameters and conclusions, for the design and optimization of fuel injection system of electronic unit integrated pump and the improvement of fuel injection system of traditional diesel engine to provide theoretical support.