Professor Sun Bing attaches great importance to the tongue diagnosis and pulse taking when she makes a diagnosis and gives treatment for patients. Her prescriptions are so light，but they can treat the obstinate diseases. Fortunately I had an opportunity to learn from her，and in the course of study I found that she treats diseases so well like a charm. I would illustrate two cases of her clinical experience of treating Sjogren's syndrome and sleepwalking，hoping to enlighten the fellow.