PURPOSE: A cosmetic composition by sonication is provided to ensure antioxidation and anti-inflammation effects such as removal of lipoxygenase and hyaluronidase activities and free radical, to treat skin trouble, and to improve cell proliferation. CONSTITUTION: A cosmetic composition for antioxidation and atopy treatment contains extracts of bluberry, black berry, asai berry, raspberry, bilberry, cranberry, black chokeberry, juniper berry, soapberry, and strawberry as active ingredients, which are prepared under the presence of a mixture solvent of water, ethanol, and 1,3-butylene glycol by sonication extraction at 20-60 KHz and 100-700 watt. A method for preparing the extracts comprises: a step of mixing bluberry, black berry, asai berry, raspberry, bilberry, cranberry, black chokeberry, juniper berry, soapberry, and strawberry with the mixture solvent; a step of precipitating at 4-50 deg. C for 1-24 hours; and a step of putting the mixture into an extraction machine and performing sonication.본 발명은 초음파 추출법에 의해 추출된 블루베리, 블랙베리, 아사이베리, 라즈베리, 빌베리, 크랜베리, 블랙초크베리, 두송열매, 숍베리 및 딸기를 유효성분으로 함유하는 항산화, 항염증 및 아토피 피부 개선용 베리류 추출물을 제공한다.본 발명에 따른 베리류 추출물은 천연과실의 유용 성분을 다량 함유하며, 자유라디칼 소거, 히아루로니다아제 활성억제, 리폭시게나아제 활성 억제 등과 같은 항산화, 항염증 효과를 가짐으로써, 각종 피부 트러블 개선, 항염증, 아토피 개선 등을 위한 화장료로 우수한 성능을 보인다.