The invention provides an energy-saving, efficient and electromagnetic pump for pumping drinking water, and belongs to drinking water equipment. An upper magnet and a lower magnet of the energy-saving, efficient and electromagnetic pump for pumping the drinking water are respectively arranged outside a water pump shell, a safety shield is fixed on the water pump shell, a buoyancy cavity is fixed under the safety shield, and a filter is fixed at a water inlet hole of the lower end of the water pump shell; a drainage valve is fixed in a central hole of the water pump shell, a magnetic induction piston is arranged in the water pump shell, a sealing cap seals a water inlet cavity, and a water flowing sealing plate seals an extrusion cavity; and a fixing plug is fixed in a plug hole in the magnetic induction piston, a sealing ball or sealing cone is mounted in an inner cone hole, and an accommodating hole is formed in the lower end of the magnetic induction piston. The energy-saving, efficient and electromagnetic pump for pumping the drinking water is compact in structure, small in vibration, high in electric energy utilization rate and powerful, and is suitable for pumping the drinking water from a drinking water well, pumping the drinking water from a drinking water reservoir, and pumping the drinking water from a water tower; when the drinking water is pumped, silt and mud cannot enter the water pump; and after a power supply is switched off, the drinking water can be delivered in a self-flowing manner, so that electric energy is saved.