Problem to be solved: to provide a coffee flavor improving composition capable of masking the resin odor from the container and improving the flavor of coffee.A coffee flavored composition that improves the flavor of coffee, 1 to 30 parts by weight of inositol, 2 to 50 parts by mass of the cyclic oligosaccharide, 1 to 10 mass fractions of fructooligosaccharides, and 0.01 to 1 mass parts of high sweetener Coffee flavored composition containing 0.05 to 10 mass parts of green tea polyphenols, 0.05 to 10 mass parts of L-arginine, 0.05 to 10 mass parts of L-valine and 0.05 to 10 parts of tryptophan.No selection【課題】容器由来の樹脂臭をマスキングし、かつ、コーヒーの風味を向上できるコーヒー風味向上組成物を提供する。【解決手段】コーヒーの風味を向上させるコーヒー風味向上組成物であって、イノシトール1~30質量部と、環状オリゴ糖2~50質量部と、フラクトオリゴ糖1~10質量部と、高甘味度甘味料0.01~1質量部と、緑茶ポリフェノール0.05~10質量部と、L-アルギニン0.05~10質量部と、L-バリン0.05~10質量部と、トリプトファン0.05~10質量部とを含有する、コーヒー風味向上組成物。【選択図】なし