本文全面概述了新一代高速动车组车体创新优化过程，详细分析了新一代高速动车组车体在气动优化、气密强度与气密性、模态匹配与减振降噪、轻量化等方面的创新设计。仿真和试验结果表明：新一代高速动车组车体具有足够的强度、刚度与结构稳定性、优良的振动与疲劳特性，良好的气动与噪声性能。

This article comprehensively summarize the optimization of process innovation of the new generation of high-speed electric multiple unit（EMU）， minutely analysize its innovative design on aerodynamic optimization， air tightness， modal matching， reduction vibration and noise， lightweight and other aspects. The simulation and experiment result shows that the new generation of high-speed EMU is with enough strength， stiffness， structure stability， excellent features of vibration and fatigue，great performance aerodynamics and noise.