The invention relates to a non-contact temperature monitoring device of high-voltage electric equipment, and belongs to the technical field of electric equipment operation control. A horizontal direction motion main shaft is mounted on an equipment bottom mechanism frame; a measuring mechanism positioned in a horizontal direction motion position is mounted on the equipment bottom mechanism frame,and is positioned on the side surface of the horizontal direction motion main shaft; a vertical direction motion mechanism fixed frame consists of a left side wall and a right side wall; the bottoms of the left and right side walls are respectively contacted with the horizontal direction motion main shaft; a vertical direction motion transmission mechanism is mounted at the top of the vertical direction motion mechanism fixed frame; and a measuring mechanism positioned in a vertical direction motion position is mounted on the vertical direction motion transmission mechanism. The non-contact temperature monitoring device of the high-voltage electric equipment has the advantages of compact structure, small size and high control precision, is suitable for an online temperature monitoring system of the high-voltage electric equipment, and is high in practicability.