This paper summarized professor LYU Renhe's academic views on diagnosis and treatment of diabetes， including staged syndrome differentiation as to

pi dan

（脾瘅），

xiao ke

（消渴） and

xiao dan

（消瘅） stages of diabetes， as well as comprehensive treatment following the principles of focusing on main symptoms， inspecting the disease mechanism and differentiating the disease location. In clinical practice， he attaches great importance to the integration of

Inner Canon of Yellow Emperor

（《黄帝内经》）

theories

and modern medicine， and takes staged syndrome differentiation and treatment of diabetes. He believes that i） obesity is the core symptom at

pi dan

stage； ii） it is critical to “remove deposited

qi

” at

xiao ke

stage； iii） the formulation of micro concretions and conglomerations is the key to the progressing from

xiao ke

stage to

xiao dan

stage； and iv）

zang fu

organs （脏腑） differentiation and channel pattern differentiation as well as disease location differentiation should be mainly taken at

xiao dan

stage.