This book covers the definition, etiology, pathogenesis and clinical manifestations of depression as well as some main diagnostic points and differential diagnosis from both the angle of traditional Chinese medicine (TCM) and that of Western medicine. It also analyzes the TCM pattern identification of depress, summarizes the progress that has been made over the last few decades through researching the way acupuncture works in the treatment of this condition. It also gives some clinical applications of acupuncture treatments andputs forward specific acupuncture methods to treat depression based on TCM pattern identification and treatment. Lastly, it lists the commonly used acupuncture points related to this condition and gives some examples of typical clinical cases.