Magnetic adsorption mechanism and magnetic building block applying same

The invention discloses a magnetic adsorption mechanism and a magnetic building block applying the same. The magnetic adsorption mechanism comprises a magnetic component and a support component supporting the magnetic component, wherein the magnetic component comprises a magnet, the magnet comprises an adsorbing surface, the adsorbing surface at least comprises an S pole and an N pole, and the magnetic component can rotate relative to the support component. When the magnetic adsorption mechanisms are used in pair, different poles located on the two adsorption mechanisms produce adsorption force through rotation, and accordingly, the two adsorption mechanisms are easily adsorbed together; the distance between the adsorbing surfaces is shorter, so that the adsorbing force is larger under the condition that magnets with equal-strength magnetic force are adopted. The magnetic building block applying the magnetic adsorption mechanism comprises a main building block body, wherein a cavity is formed in the main building block body, and the magnetic adsorption mechanism is arranged in the cavity. The magnetic building block is simple in structure and simple and convenient to assemble and disassemble and the use experience is good.