We expounded the importance and objectivity of abdominal examination and abdominal throb by tracing the development origin of abdominal examination.The different classification and pathogenesis of abdominal throb in Treatise on Cold Damage were dissected and studies on the mechanism and correlation factors of abdominal throb at home and abroad were reviewed.The syndrome and treatment of abdominal examination is a part of the syndrome and treatment of the whole Chinese medicine system and abdominal throb is an important part of it， which can be divided into epigastric throb，subumbilical throb and supraumbilical throb，the location and pathogenesis of all three being different.Abdominal throb is closely related to the anatomical characteristics of the abdomen，velocity of blood flow，counterforce of vertebral body，and impact of sound.In addition， the diameter of the heart， the front and rear diameter of the chest， age， height， blood pressure，abdominal force and throb were all correlated with different degrees.