The invention relates to the technical field of current mutual inductors, in particular to a current mutual induction device which can be arranged in an electric meter. The current mutual induction device comprises an insulation shell, wherein a first current mutual inductor, a second current mutual inductor and a third current mutual inductor are arranged in the insulation shell, and the first current mutual inductor, the second current mutual inductor and the third current mutual inductor are insulated with each other; the first current mutual inductor, the second current mutual inductor and the third current mutual inductor comprise annular iron cores and secondary coils, the annular iron cores are perpendicular to the bottom plane of a base of the electric meter, so that the first current mutual inductor, the second current mutual inductor and the third current mutual inductor are arranged on the base of the electric meter, and the secondary coils comprise the iron cores and varnished wires which surround the iron cores.