The invention relates to a combined type optical-electricity encoder with a copper code disc, and belongs to the technical field of electrified transmission detection. The combined type optical-electricity encoder with the copper code disc comprises a fixing elastic piece clamp, a fastening screw, a connecting shaft sleeve, a bearing, a base, an LED light source, a grating ruler, the copper code disc, an optical-electricity receiving component, a signal conditioning circuit board, a signal amplification circuit board, a shell and locating screws. A permanent magnet synchronous motor shaft and the connecting shaft sleeve are tightly connected through the fastening screw, the copper code disc is fixed at one end, far away from the motor shaft, of the connecting shaft sleeve, the LED light source is fixed in a light source hole of the base, and the grating ruler is arranged and fixed on the outer portion of the light source hole of the base. The optical-electricity receiving component is welded to the signal conditioning circuit board, and the signal conditioning circuit board, the signal amplification circuit board and the shell are arranged on the base in a matched mode through the locating screws. The base is fastened with the outer ring of the bearing, and the inner ring of the bearing is fastened with the outer ring of the connecting shaft sleeve. The combined type optical-electricity encoder with the copper code disc has the advantages of being simple and compact in structure, low in cost and easy to mount and use. A rotor magnetic pole position signal 'U' or 'V' or 'W' and a rotor displacement signal 'A' or 'B' and a correction signal 'Z' in an alternating current servo system can be provided simultaneously, wherein the rotor magnetic pole position signal 'U' or 'V' or 'W' and the rotor displacement signal 'A' or 'B' are needed for controlling a permanent magnet synchronous motor, and the correction signal 'Z' is used for eliminating accumulated errors.