The present invention is easy to work for the preparation of milk, it also provides a kit for the preparation of infant milk that can shorten the preparation time of milk. A set of the disinfected bottle and nipple, the amount of sterilizing the treated water required to dissolve the milk powder in the feeding bottle, can be temporarily accommodate the bottom and the body of the bottle the possible heating vessel and pressure to the sterilization treated water bottle containing sterile-treated water is temporarily received in the heating vessel by contact with each other at heated vessel 40 or higher To produce hot water which may be warm, exothermic agent, water and the set was accommodated in a casing infant milk kit preparation composed of that generates heat by contact respectively with the water that is contained in the water-impermeable container .BACKGROUND 4【課題】ミルクの調製のための作業が簡単で、またミルクの調製時間を短くできる乳児用ミルクの調製用キットを提供する。【解決手段】消毒済みの哺乳瓶と乳首とのセット、哺乳瓶内にて粉ミルクを溶解させるために必要な量の滅菌処理済みの水、哺乳瓶の底部と胴部を一時的に収容することのできる加温容器、加温容器内にて互いに接触することにより加温容器内に一時的に収容された滅菌処理済みの水を含む哺乳瓶の当該滅菌処理済みの水を40℃以上に加温することのできる温水を生成する、それぞれが水不透性容器に収容されている水との接触により発熱する発熱剤と水とのセットをケースに収容してなる乳児用ミルクの調製用キット。【選択図】図4