Novel measurable primary-secondary type vacuum cup

The utility model discloses a novel measurable child-mother type vacuum cup, and relates to the technical field of vacuum cups, a heat preservation mother cup is mounted on the upper surface of a mounting seat, a child cup is mounted on the lower surface of the mounting seat, and a connecting pipe which penetrates through the mounting seat and is communicated with the child cup is mounted on the lower surface of the heat preservation mother cup; an electromagnetic valve is mounted on the surface, close to the secondary cup, of the connecting pipe in the mounting base, a water flow sensor is arranged on the surface, close to the electromagnetic valve, of the connecting pipe in the mounting base, the capacity of hot water entering the secondary cup from the primary cup can be set, the capacity of the secondary cup is 100 ml, and water is injected according to the one-time drinking requirement of a user; the volume is small, and the water is filled at any time after drinking is finished, so that the water drinki