Objectives : This survey was accomplished to find out how Korean medical doctors take acupuncture prescriptions for knee osteoarthritis in real clinical practice. Methods : The survey questions were developed by the consensus from 4 professors and 10 residents who major in acupuncture & moxibustion for developing clinical trial protocol on individualized acupuncture treatment for knee osteoarthritis. The questionnaires were distributed via e-mail to 3,306 members of Korea Oriental Medical Association from March 15th to March 23rd in 2005.84 members completed answers, and the computerized data were analyzed by ISP statistical program. Results : 1. 68 out of 84 Korean medical doctors used pattern diagnosis. 2. 61 out of 84 Korean medical doctors used both local and remote points, 20 doctors remote points only, and 3 doctors local acupuncture points only. 3. In case of doctors who use remote acupuncture points only, the acupuncture prescription principle was Saam or five element acupuncture (66%), along the meridian pathway (14%), Eight constitutional acupuncture (11%), Taegeuk acupuncture (2%), and miscellaneous (18%). Conclusion : In our e-mail survey, Korean medical doctors who experienced more than 10 year practice answered that they use five element acupuncture or Saam acupuncture according to meridian pathway theory as the most common principle of their acupuncture treatment prescription.