45 Dementia of Alzheimer type patients who were treated by the KOMC NP from Jan. 1996 to July. 1997 were recruited for this study in order to prove the effects of the oriental medical treatment on Dementia of Alzheimer type. Patients were strictly classified into Sasang constitutions, and then were given herbal and acupunctural treatment for various length of time. The efficiency of the treatment was assessed by criteria for memory, orientation, registration, attention and calculation, language. The following results were obtained. 1. Out of 45 cases, 14 improved to almost normal state, 13 improved a little, 16 had no change, and 2 became worse. On the whole, 60% of the patients showed improvement. 2. Out of 31 female patients, 17 patients improved, thus the rate of improvement was at 55%. Out of 14 male patients, 10 patients improved, thus the rate of improvement was at 71%. 3. The analysis of the patients constitution resulted in two Soyang-constitution, 23 Soum and 20 Taeum, Soum, Teaum responded to the treatment to an approximately equal extent. 4. Of the demendia patients involved in the study, 9 cases were mild, 14 moderate, and 22 severe, 9 mild cases, 12 moderate cases and 6 severe cases showed meaningful response to the treatment.