A homecare suction device includes a main body (1) having a housing (11). An air pump (12) is mounted in the housing (11) and in communication with an air outlet (142) and an air inlet (144) of the housing (11). A breast pump (3) includes a cover (31) mounted to an opening (21) of a container (2) for receiving a liquid. The cover (31) includes a liquid sucking unit (32) and an air sucking unit (33). The liquid sucking unit (32) includes a liquid passage (321) and a cup (322) for contacting with an object. The air sucking unit (33) includes an air passage (331) and a connection port (332) in communication with the air inlet (144) of the main body (1). A funnel (311) is mounted in the cover (31) and in communication with the liquid passage (321), the air passage (331), and the interior of the container (2). The cover (31) further includes a vent (312)communicating the interior of the container (2) with the outside. The air inlet (144) is connected to the connection port (332) by a hose (4).