The present invention relates to a composition for preventing or treating obesity, in particular immature citrus extract therefrom or Removing a remote Citrine 3-glucose (limocitrin-3-glucose), 8- methoxy-quercetin 3- -[6-(3 - -3 - - )- - - ] (8-Methoxy Quercetin 3- O - [6 "- (3" - hydroxy-3 " - methyl-glutaroyl) - -D-glucopyranoside]) , 3- -[6-(3 - -3 - - )- - - ] (Quercetin 3- O - [6 "- (3" - hydroxy-3 " - methyl-glutaroyl) - -D-glucopyranoside]) and 5,6,7,8,3,4- 3- -[6-(3- - )- - - ](5,6,7,8,3,4-HexaMethoxyQuercetin3-O-[6-(3-hydroxy-3-methyl-glutaroyl)- -D-glucopyranoside]) Relates to a composition for preventing or treating obesity, including at least one compound selected from the group consisting of. The invention also relates to a pharmaceutical composition and health functional food comprising the composition for the prevention or treatment of obesity.본 발명은 비만 예방 또는 치료용 조성물에 관한 것으로, 구체적으로는 미성숙 감귤 추출물 또는 이로부터 분리한 리모시트린-3-글루코즈(limocitrin-3-glucose), 8-메톡시 퀘르세틴 3-오-[6”-(3”′-하이드록시-3”′-메틸-글루타로일)-베타-디-글루코피라노시드] (8-Methoxy Quercetin 3-O-[6”-(3”’-hydroxy-3”’-methyl-glutaroyl)-β-D-glucopyranoside]), 퀘르세틴3-오-[6”-(3”′-하이드록시-3”′-메틸-글루타로일)-베타-디-글루코피라노시드] (Quercetin 3-O-[6”-(3”’-hydroxy-3”’-methyl-glutaroyl)-β-D-glucopyranoside]) 및 5,6,7,8,3,4-헥사메톡시퀘르세틴3-오-[6”-(3”’-하이드록시-글루타로일)-베타-디-글루코피라노시드](5,6,7,8,3,4-HexaMethoxyQuercetin3-O-[6”-(3”’-hydroxy-3”’-methyl-glutaroyl)-β-D-glucopyranoside])로 이루어진 군으로부터 선택된 하나 이상의 화합물을 포함하는 비만 예방 또는 치료용 조성물에 관한 것이다. 또한, 본 발명은 상기 비만 예방 또는 치료용 조성물을 포함하는 약제학적 조성물 및 건강 기능성 식품에 관한 것이다.