The utility model relates to a bird device of nesting is prevented to 10kV line pole, including first swash plate and second swash plate, first swash plate is the same with second swash plate size, and a length of branch limit of first swash plate and a length of branch limit portion of second swash plate link together, and the contained angle of first swash plate and second swash plate is 80 degrees, and the device has and installs facility, simple structure, economical and practical, long service life, continuation and prevent the bird and nest the effect and obviously, do not influence the advantage of circuit safe operation etc. Has increased substantially service reliability.