The harmfulness of diesel engine emission and its formation and influence factors were analyzed. The main technological measures and developing directions involved to reduce the emission are pointed out.

• 摘要分析了柴油机排放物的危害、形成及影响因素，指出了降低柴油机有害排气污染物所涉及的主要技术措施，为提高现有柴油机的技术水平，降低排放指出了发展方向。