Lushan Quaternary glacial theory, advocated by Professor Lee J. S. (Li Siguang), has been argued for a long time. The bone of contention focuses on which the boulder clay melange actually is: glacial moraine or debris flow deposits. After years of research, writer learned that: (1) The altitude of Guling station is 1165m. Ice formation at such altitude in Lushan seems to impossible, for the modern climate records showed that it is impossible to fall 20 ℃ in July in mid-latitude mountainous area during glacial period. (2) Sediment in this area characterized by gravel compositions, variable granularity，matrix composition, sedimentary structure, color, clay and scratch, indicating that the boulder clay melange actually is debris flow deposits. (3) The compositions of vermiculated red soil and pollen in bounding gravel showed that the sedimentary period was characterized by the warm temperate—subtropical humid environment, rather than cold glacier environment. (4) Based on the paleomagnetic times and paleotemperature, based on the ratio of the ferric ion to ferrous ion mentioned in He Peiyuan’s work, showed that Lushan Glaciation, Dagu Glaciation and Poyang Glaciation advocated by Professor Lee, associated with Dapai Glaciation advocated by Professor He were all in interglacial period in western China and northern hemisphere, which indicated that the possibility of ice formation during such time in Lushan area was excluded. Lee’s academic misunderstanding and social status is an obstacle to the Quaternary Glacial study in eastern China.