The utility model discloses a current magnetic effect demonstration table, comprising a support rack, and the supporting rack is provided with a coil, the coil is electrically connected with a power supply, and a sliding varistor is arranged between the power supply and the coil, and a magnetic needle which can freely rotate is arranged under the coil, and the above technical scheme is adopted, the current magnetic effect demonstration table has simple structure, convenient using, and can clearly demonstrate magnetic effect of current in a direct-viewing way.