The invention relates to a transformer substation composite material bushing anti-seismic limit bearing capacity parameter calibration method comprising the steps that seismic simulation vibration table testing and quasi-static bending resistance testing are performed on the first batch of products of composite material bushings so that anti-seismic limit bearing capacity Mse and anti-bending limit bearing capacity Mst are respectively obtained; the conversion coefficient r is calculated through the anti-seismic limit bearing capacity Mse and the anti-bending limit bearing capacity Mst; quasi-static bending resistance testing is performed on the products of the composite material bushings apart from the first batch of products so that anti-bending limit bearing capacity Mst' is obtained; and anti-seismic limit bearing capacity Mse' is obtained through the conversion coefficient r. The technical scheme has practical importance on anti-seismic performance detection of the composite material bushings.