Baby-bottle cap with liquid or milk powder-feeding standby function and carrying function

The invention relates to a feeding bottle cap with the function of carrying spare feeding liquid or milk powder. The feeding bottle cap comprises a top cover; and the top cover has a cover mouth which has a downward lower section and is capable of covering a teat base on the top section of the feeding bottle. The feeding bottle cap is characterized in that the upper section of the top cover has a cup-shaped part where boiled water or dry material to be blended in water can be filled in advance; an external screw thread part arranged on the external rim of the top section of the top cover can be used for being locked with another group of a teat base and the bottom section internal screw thread thereof; the another neat base can be covered by another feeding bottle cap; and the screw thread part can also be used for being locked with an upside-down bowl-shaped upper cover base having an outlet casing cover and the bottom section internal screw thread thereof. Therefore, after the feeding bottle is used to feed