云南潦浒褐煤盆地白泡煤在煤层结构、煤岩组分及物理化学性质等方面有着显著的特点，对其分类地位和成因一直存在较大争议作者运用煤岸学、煤化学方法及电子显微技术（选区电子衍射SAD及暗场DF方法）对白泡煤显微组分特征、降解组分超微结构和腐植酸组成等做了系统对比研究。研究结果进一步验证了潦浒白泡煤是以草本植物为主体的草本—木本植物组合体在中位沼泽环境中形成的推论。 The white foam coal in the Luanchuu brown coal basin in Yunnan Province has notable features in terms of coal seam structure, coal-rock composition, physical and chemical properties, etc., and its classification status and cause have been greatly controversial. By using coal bank chemistry, coal chemical methods and electronic display Micro-technology (selective area electron diffraction (SAD) and dark-field DF method) systematically studied the characteristics of microscopic components, the ultrastructure of degradable components and the composition of humic acid. The results further validate the conclusion that the lush foam coal is an herbaceous grass-woody assemblage formed in a mid-swamp environment.