Purpose This study was performed to observe the change of body temperature during preparatory period. Method This study was carried out on 19 patients by D.I.T.I. The temperature was measured on Chondol(CV22), chonjung(CV17), the abdominal region and palm of Rt. and Lt. hand on every minutes for ten minutes. Result and Conclusion In male and female, until 6 minutes mean body temperature decreased but from 7 minutes it increased a little. Temperature in Chondol(CV22) and chonjung(CV17) also had similar tendency. However in the abdominal region temperature decreased and in palm of Rt. and Lt. hand it increased continously for ten minutes