Replacing method of shock-insulation supporting seat

The invention provides a replacing method of a shock-insulation supporting seat, comprising the following steps of: (1) measuring and positioning the bolt positions of an upper flange plate and a lower flange plate of the shock-insulation supporting seat to be replaced; (2) manufacturing a new shock-insulation supporting seat, and punching on the corresponding positions of the upper flange plate and the lower flange plate according to the measured bolt positions; (3) jacking an upper buttress of the shock-insulation supporting seat to be replaced; (4) pulling the shock-insulation supporting seat to be replaced out of an original position; (5) carrying the new shock-insulation supporting seat to an installation position, and installing and fixing; and (6) unloading the jacked upper buttress. The replacing method has the advantages of low cost, easy and convenient operation, safety, reliability and greatly-shortened construction period.