The utility model relates to the technical field of breast pumps, in particular to a milk taking device which comprises a milk receiving bowl, a horn cover arranged at a bowl opening of the milk receiving bowl and an elastic diaphragm, the horn cover extends towards the interior of the milk receiving bowl to form a circulation part, a three-way end is formed at the
tail end of the circulation part, and the elastic diaphragm is arranged at the
tail end of the three-way end. The three-way end comprises a first port, a second port and a third port, the first port is communicated with the circulation part, the second port is matched with the elastic diaphragm, and the third port is communicated with a milk receiving container and is provided with a
check valve; the elastic diaphragm is integrally connected to the milk receiving bowl, a vacuumizing cavity is correspondingly formed in the elastic diaphragm, an air hole used for being communicated with an
air pump and a through hole used for being communicated with the outside are formed in the
cavity wall of the vacuumizing cavity, and a detachable rear cover is arranged at the position of the through hole. The
breast pump effectively solves the technical problems that an existing
breast pump is complex in internal structure and high in production and installation cost, and milk can be sucked into an
air pump.