An electromagnetically-driven liquid atomization device, comprising an atomizing core and an electromagnetic drive unit, wherein the atomizing core comprises a liquid storage tank and an electrical heating element; the liquid storage tank is provided with a driving cavity and an extrusion cavity; the driving cavity and the extrusion cavity are in fluid communication; an upper wall of the driving cavity is provided with an elastic diaphragm and a permanent magnet; an upper end of the extrusion cavity is provided with an opening as a droplet releasing hole; the electrical heating element is provided above the droplet releasing hole, and a surface of the electrical heating element and the droplet releasing hole are opposite and spaced apart by a distance; and the electromagnetic drive unit is provided at a bottom of the atomizing core; wherein the atomizing core is further provided with a pressing plate, an upper sealing gasket, an extrusion cavity frame, a driving cavity body, a lower sealing gasket, a substrate and a base; the liquid storage tank is enclosed by the driving cavity body, the elastic diaphragm, the upper sealing gasket, the lower sealing gasket and the substrate; the pressing plate is provided on an outer wall of the elastic diaphragm; the permanent magnet is provided between the pressing plate and the elastic diaphragm and is attached to a wall of the elastic diaphragm; the extrusion cavity is inside the extrusion cavity frame, and the opening of the extrusion cavity is configured as the droplet releasing hole; a center of each ofthe pressing plate, the permanent magnet and the elastic diaphragm is provided with a hole corresponding to the droplet releasing hole; the base is provided at a bottom of the liquid storage tank; the electromagnetic drive unit is located in a cavity of an electromagnetic drive rod, and the atomizing core is provided on an outer wall of the electromagnetic drive rod through the base. the atomizing core comprises a liquid storage tank and an electrical heating element; the liquid storage tank is provided with a driving cavity and an extrusion cavity; the driving cavity and the extrusion cavity are in fluid communication; an upper wall of the driving cavity is provided with an elastic diaphragm and a permanent magnet; an upper end of the extrusion cavity is provided with an opening as a droplet releasing hole; the electrical heating element is provided above the droplet releasing hole, and a surface of the electrical heating element and the droplet releasing hole are opposite and spaced apart by a distance; and the electromagnetic drive unit is provided at a bottom of the atomizing core; wherein the atomizing core is further provided with a pressing plate, an upper sealing gasket, an extrusion cavity frame, a driving cavity body, a lower sealing gasket, a substrate and a base; the liquid storage tank is enclosed by the driving cavity body, the elastic diaphragm, the upper sealing gasket, the lower sealing gasket and the substrate; the pressing plate is provided on an outer wall of the elastic diaphragm; the permanent magnet is provided between the pressing plate and the elastic diaphragm and is attached to a wall of the elastic diaphragm; the extrusion cavity is inside the extrusion cavity frame, and the opening of the extrusion cavity is configured as the droplet releasing hole; a center of each ofthe pressing plate, the permanent magnet and the elastic diaphragm is provided with a hole corresponding to the droplet releasing hole; the base is provided at a bottom of the liquid storage tank; the electromagnetic drive unit is located in a cavity of an electromagnetic drive rod, and the atomizing core is provided on an outer wall of the electromagnetic drive rod through the base.