A magnetic component is disclosed. The magnetic component includes a magnetic core assembly, a fastening element, a first winding set and a second winding set. The magnetic core assembly includes at least a pillar. The fastening element is provided on an outer peripheral surface of the pillar. The first winding set is disposed around the outer peripheral surface of the pillar. The second winding set is disposed around the outer peripheral surface of the pillar and engaged with the fastening set. The first winding set and the second winding set are located adjacent to each other and disposed around the outer peripheral surface of the pillar.