The invention relates to a multi-group linkage automatic center finding method for hub clamps. The multi-group linkage automatic center finding method for the hub clamps includes the following steps that a, to-be-machined hubs are placed on a chuck; b, the hub positions are preliminarily adjusted; c, positioning hooks are locked; d, automatic alignment is performed; and e, positioning is completed. A plurality of positioning blocks are fixedly installed at the upper end of the periphery of the chuck in the radial direction at intervals; the positioning hooks are hinged to the lower end, on theouter sides of the positioning blocks, of the chuck; and limiting sliding grooves are manufactured in the middle portions of the positioning hooks in the step c, and the limiting sliding grooves andlimiting columns fixedly installed on the chuck are in sliding fit. According to the multi-group linkage automatic center finding method for the hub clamps, by means of the automatic center finding device, the radial positioning blocks are made to automatically determine the circle center within a certain range, the positioning precision is improved, blanks are made to be subjected to automatic alignment, scrap generated because clamping is not straight is reduced, and the radial positioning precision of the blanks is improved.