PURPOSE: A composition containing tripeptide and Cordyceps sinensis extract is provided to prevent and treat atopic dermatitis.CONSTITUTION: A composition for preventing and treating atopic dermatitis contains GHK, AHK, metal ion complex thereof, or materials conjugated with fatty acid at peptide N-terminal. The metal ion includes copper and zinc. The fatty acid comprises carbon chains having straight or branched structures with saturated or unsaturated bond of 1-20 carbon atoms. The composition is manufactured in the form of a skin, lotion, nutrition cream, massage cream, essence, pack, powder, ointment, suspension, emulsion, spray, soap, shampoo, patch, or gel.COPYRIGHT KIPO 2012본 발명은 아토피 피부염 예방 및 치료용 조성물에 관한 것으로 보다 상세하게는 아토피 피부염 예방 및 치료용 조성물에 있어서, 상지 추출물, 동충하초 추출물, 트리 펩타이드를 포함하는 아토피 피부염 예방 및 치료용 조성물에 관한 것이다.