The invention provides a light-reflecting and heat-accumulation type bird repelling device and relates to the field of power supply. The light-reflecting and heat-accumulation type bird repelling device comprises an arc-shaped reflector, a reflector support and a device fixing support, wherein the arc-shaped reflector is mounted on the device fixing support through the reflector support; the reflector support is movably mounted on the device fixing support; the focus of the arc-shaped reflector is located on a cross arm; the device fixing support is mounted on a telegraph pole, and the arc-shaped reflector is located below the cross arm. The light-reflecting and heat-accumulation type bird repelling device has the advantages that the device is mounted below the telegraph pole, the personalsafety of mounting staff is guaranteed effectively, mounting can be performed without power cut, and mounting quality is guaranteed; the dust of the light-reflecting face of the arc-shaped reflectorcan be cleaned by natural wind and rain conditions; the position of the arc-shaped reflector can be regulated after mounting to allow the light reflecting intersection to be located in the middle of the cross arm or a bird nesting position, the temperature of the position can be 2-3 times of the temperature of the environment, and accordingly birds give up nesting on the cross arm.