Reactance magnetic core

The utility model provides a reactance magnetic core. The reactance magnetic core comprises a closed annular magnetic core body, and the magnetic core body comprises a first magnetic powder layer, a second magnetic powder layer and an iron-based metallic body which are sequentially arranged layer by layer in a wrapped mode from outside to inside. By means of the scheme, as the magnetic powder layers of the reactance magnetic core are arranged in a layered mode, the iron-based metallic body is wrapped with the magnetic powder layers, and the magnetic core body is arranged to be closed and annular, space can be better used compared with an existing reactance magnetic core. In addition, by means of the reactance magnetic core of the structure, the needed manufacturing cost is small, the process is simple, and the magnetic conductivity of the reactance magnetic core in the same specification is greatly improved compared with the prior art.