Objectives: Since we found patients with dyspepsia as their major symptom had high rate of headache, would like to find out a rational diagnosis ground by using EAV correlation between headache and gastrointestinal disorder Methods: We did survey and EAV inspection on 128 patients came by gastrointestinal disorder who quoted 4 and 5 degree for their headache symptoms) Results & Conclusion The results of this study were as follows: 1. From dyspepsia, we saw higher rate by order of epigastric discomfort, bloating, stomach trouble, bleching, etc. 2. By EAV analysis, found functional deterioration by order of stomach, nerval degeneration vessel, gall bladder/bile duct, liver. 3. By EAV analysis, functional deterioration of stomach, gall bladder/bile duct, liver represent dyspepsia and nerval degeneration vessel represent headache. We found the correlation between dyspepsia and headache by observation at a time.