A liquid micro-electro-mechanical system (MEMS) magnetic component includes a board, a channel, one or more windings, a magnetizing-doped droplet, and a droplet activating module. The channel is implemented or embedding in one or more layers of the board and the one or more windings are proximally positioned to the channel. The magnetizing-doped droplet is contained in the channel and is modified by the droplet activating module based on the control signal. By modifying the magnetizing-doped droplet with respect to the one or more windings changes an electromagnetic property of the liquid MEMS magnetic component.