PROBLEM TO BE SOLVED: To provide an oil-in-hydrophilic base type emulsion composition capable of providing an emulsion composition having excellent use feeling and high stability.SOLUTION: There is provided an oil-in-hydrophilic base type emulsion composition comprising the following components (A), (B) and (C). Component (A): a modified hyaluronic acid in which a glycerol skeleton-containing group represented by the following general formula (1) is bonded to at least one of carbon atoms constituting a hyaluronic acid skeleton and/or a salt thereof. (wherein, R1 represents a linear or branched alkyl group or alkenyl group having 6 to 20 carbon atoms.) Component (B): a hydrophilic base. Component (C): oil.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】本発明は、使用感に優れ、安定性の高い乳化組成物を提供できる親水性基剤中油型乳化組成物の開発に関する。【解決手段】次の成分(A)、(B)及び(C)を含有する親水性基剤中油型乳化組成物。成分(A):下記一般式(1)で表されるグリセリン骨格含有基がヒアルロン酸骨格を構成する炭素原子の少なくとも1つに結合している修飾ヒアルロン酸および/又はその塩[化1]・・・(1)(式中、R1は炭素原子数6~20の直鎖状または分岐状のアルキル基またはアルケニル基を表す。)成分(B):親水性基剤成分(C):油【選択図】なし