A vapour generating device is provided with the surface of a heating chamber easy to be exposed.The vapour generating device comprises: a receiving portion 4 a case 2, removably received within the receiving portion 4, for storing a predetermined liquid 7 therein a heater 9, disposed on the opposite side to the case 2 received in the receiving portion 4 in such a manner that the surface thereof is exposed after removing the case 2 from the receiving portion 4 and a heating chamber 6, communicating with the interior of the case 4 and formed between the outer circumference of the case 2 and the surface of the heater 9 by the case 2 receiving in the receiving portion 4.本發明提供一種可使加熱室表面容易露出的蒸氣產生裝置。蒸氣產生裝置具備:收容部4;容器2,其係在內部儲存預定的液體7且可裝卸地收容於收容部4;加熱器9,其配設於隔著收容部4而收容於收容部4的容器2的相反側,且表面會因為容器2從收容部4卸下而露出;及加熱室6,其與容器2的內部連通,藉由將容器2收容於收容部4而形成於容器2的外周面與加熱器9的表面之間。1A...熱水儲槽2...容器2B...供水路2C...連通路4...收容部5...蓋6...加熱室6A...表面6B...表面7...水9...加熱器10...噴出噴嘴(6A)...外周面AR...箭頭