Milk pump

The utility model relates to a milk pump and provides a novel electric milk pump with safe, convenient and comfortable use and distinct effect, which comprises a breast shield 2 fitted with the breast shape of puerpera and a capped milk bottle 3 which are communicated by a plastic soft tube. A plastic soft tube 1 communicates the milk bottle 3 with a negative pressure device 4 which is a plastic box with a negative pressure pump driven by battery, wherein the plastic box is provided with a small negative pressure pump 5 and a rechargeable battery 7 inside and a power switch 6 outside, and the small negative pressure pump 5, the rechargeable battery 7 and the power switch 6 form a closed loop. The milk pump with above-mentioned structure can suck surplus milk using negative pressure absorption with simple operation of just opening the switch, portability and low cost.