< Topic >As the infant at unnecessary noise is surprised while sleeping, the ear plug for the infant which the housewife can devote to the housekeeping without awaking, is offered.SolutionsAt the silicon resin which possesses the elasticity whose flexibility is soft the small condition Tip projected part 2 which is interposed in the external auditory meatus of the left and right both ears of the infant who was formed and, furthermore bag part it features that with the elastic cord braid 5 for expansion to which concatenates the bag part of 4 of the left and right pair where the fingertip of the adult is interposed and this left and right pair mutually it forms.< Choice figure >Drawing 2【課題】乳幼児が睡眠中に不必要な騒音にて驚くと共に、目覚めることなく、主婦が家事に専念できる乳幼児用耳栓を提供する。【解決手段】柔軟性の柔らかい弾性を有するシリコン系樹脂にて形成された乳幼児の左右両耳の外耳道に挿入される細状先端突部2と、更に大人の指先が挿入される左右一対の袋部4と、この左右一対の袋部を互いに連結する伸長用ゴム紐5とで成したことを特徴とする。【選択図】図2