有关日本帝国主义在侵华战争中大量、持久地使用化学武器屠杀我抗日军民的历史事实，随着大量有关档案材料的公开和历史学者的研究而逐渐为世人所了解。但是，面对如山的铁证，日本官方直至今日仍予以否认。本文拟以近年来收集到的有关材料和实地路察为依据，从几个侧面来论证? The historical facts about the massive and prolonged use of chemical weapons by Japanese imperialists in massacre of the anti-Japanese army and people in the war on China have gradually come to be known to the world as a result of numerous open and historical scholars’ research on archival materials. However, in the face of ironclad evidence, Japanese officials still denounce it today. This article is based on the relevant materials collected in recent years and on the spot investigation, from several aspects to demonstrate?