The present invention relates to a scalpel doctor uses for surgery. Surgical instrument has not developed compared with development of surgical technique and development of test instruments. Especially, the instrument is same as before in spite of changes in surgical and medical surgeries. Therefore, a scalpel matching the characteristics of surgeries not only plastic surgeries and characteristics of users and patients is needed. Provided in the present invention is an ideal structure of a scalpel matching the characteristics by researching the characteristics of uses to smoothen cutting during a surgery, and minimize the cutting surface of the skin to provide an effect for regeneration of the skin after the surgery.
