The utility model provides a phase notice board assembly. The phase notice board assembly comprises a plurality of phase boards different in shape and connection parts arranged on the phase boards, wherein the phase boards are installed on installation positions through the connection parts. As the phase boards different in shape are arranged, wires corresponding to the phase boards can be distinguished through observation of the shapes of the phase boards, and the phase notice board assembly has the advantage that judgment is visual and reliable. As the phase boards are installed on the installation positions through the connection parts, the phase boards are prevented from damaging the wires, the use safety of the phase notice board assembly is improved, the service life of the wires is prolonged, and the operation safety of a low voltage line is guaranteed.