The invention relates to a bird repeller fixing installation structure. A bird repleller comprises a device, wherein the device can give out wind and light and can rotate, the lower part of the device is connected with an installation rod, a base is arranged at the end part of the installation rod and provided with a transverse U-shaped clamping groove, the lower part of the base is connected with a segment of outer cylinder with openings at two ends, an inner cylinder is configured in the outer cylinder, connected into the outer cylinder in an insertion way and can upwards extend into the U-shaped clamping groove, the inner end of the inner cylinder is sealed, a spring is arranged in the inner cylinder and upwards props against a sealing end of the inner cylinder, the tail end of the spring props against a screw connected to the outer end of the outer cylinder in a screwed way, the end part, capable of extending into the U-shaped clamping groove, of the front end of the inner cylinder is provided with an inclined end surface convenient to be inserted into the clamping groove, an external thread is arranged at the outer end part of the outer cylinder, the screw is a hexagonal screw body, and the hexagonal screw body is connected onto the external thread of the outer cylinder by a solenoid provided with an internal thread. The bird repeller fixing installation structure has the characteristics of simplicity, safety and reliability and the like and is convenient to use and install, live line disassembly and replacement of the bird repeller can be carried out conveniently and rapidly, the working efficiency is improved, and the normal running of a power grid is ensured.