The invention discloses an optical positioning apparatus of a high-voltage pole tower base. The optical positioning apparatus comprises a small round chassis, a big round chassis, an operational device, a center light set installed on the small round chassis and an auxiliary positioning device installed on the operational device. The optical positioning apparatus of the high-voltage pole tower base can be quickly assembled, calibrated and positioned at a construction field, the optical positioning precision is high, errors are small, the optical positioning apparatus of the high-voltage pole tower base is not influenced by field wind, rain and dirt, easy to adjust, convenient to disassemble, and occupies little space after disassembly, carrying is convenient, time and labor are saved, anda people can complete entire positioning operation.