Objective To study the syndrome identification and treatment law of Pi syndrome（epigastric fullness syndrome） by the MAscholarly in menghe area.Methods Case records related to the Pi syndrome distributed in books by main doctors of MAscholarly were collected.The syndrome factors of symptom

disease location

disease nature and medicinal composition in the medical records were standardized.The frequency statistical analysis

association rules and R-type cluster analysis were conducted by Microsoft Office Excel 2003

Alpha-Miner 2.0.0.0and IBM SPSS U soft ware.Results The main location of Pi syndrome was the stomach

spleen

liver

chest and diaphragm.The main nature of Pi syndrome was qi-stagnation

qi deficiency

damp and phlegm.The mainly used medicinal was qi-rectifying medicinal

supplementing medicinal and dampness-dispelling medicinal.There was a strong correlation between the syndrome factors of symptom

disease location and medicinal.Five medication clustering combinations were found with cluster analysis.Conclusion The main syndrome types of the Pi syndrome was center deficiency qi stagnation syndrome

center deficiency dampness encumbering syndrome and liver-stomach disharmony syndrome.The mainly used medicinal was qi-rectifying medicinal

supplementing medicinal and dampness-dispelling medicinal.The main treatment was boosting qi

fortifying the spleen

rectifying qi and transforming the dampness.Guishao Liujun Decoction（Chinese Angelica and Peony Six Gentlemen Decoction）was commonly used.