An object of the present invention is to provide an artificial nipple in which a nipple tip section can sufficiently reach the sucking fossa and can be appropriately squashed, so that a nursing operation can reliably take place in that state, and to provide also a nursing container that uses the artificial nipple. The artificial nipple is a molded product made of an elastic material such as a soft resin and configured overall as a substantially conical hollow body, and has a base section 21 that widens to match an attachment object an areola section 22 that is formed contiguously to the base section and that extends while narrowing gradually and a nipple section 23 that extends from the areola section and that narrows more than the areola section. A flange section 41 provided in the base section has a predetermined thickness. A check valve 44, which is formed with a valve body so as to be entirely accommodated within the thickness dimension of the flange, is provided in the base section.本發明之課題在於提供一種乳頭前端部可充分地到達哺乳窩而可適當地擠扁,且於該狀態下可確實地進行哺乳運動之人工乳頭及使用其之哺乳器。該人工乳頭係由軟質樹脂等彈性材料所形成整體為大致圓錐狀的中空體之成形品,該人工乳頭包含:底部21,其直徑對應於安裝對象而擴大;乳暈部22,其連續而形成於該底部且直徑漸漸縮小而延伸;以及乳頭部23,其自該乳暈部延伸且直徑較上述乳暈部進一步縮小,並且,設置於上述底部之凸緣部41具有既定之厚度,並且設有止回閥44,該止回閥44設於該底部且以完全收容於上述凸緣之厚度尺寸內之方式形成有閥體。3...旋蓋21...底部34...(旋蓋之)凸緣部41...凸緣部42...凸出部44...止回閥46...貫通孔47...懸突部48...狹縫49...一體部51...凹陷部52...間隔件A1、A2、A3...箭頭D1、D2、D3、G1...空隙