The invention relates to a producing method for a super austenitic 904L stainless steel strip. The producing method for the super austenitic 904L stainless steel strip comprises that calendering processing is conducted on a plate blank to form the stainless steel strip. The calendering processing comprises the following steps that (1) primary heating is conducted on the plate blank in a heating furnace; (2) primary pre-calendering processing is conducted on the plate blank, the calendering frequency of primary pre-calendering processing is 3-5, and the thickness of the plate blank is calendered to the 145-160 mm; (3) crack detection and surface grinding processing are conducted on the plate blank after primary pre-calendering processing; (4) secondary heating is conducted on the plate blank in heating furnace; and (5) secondary calendering processing is conducted on the plate blank, so that the thickness of plate blank is calendered to the target thickness. According to the producing method, the produced super austenitic 904L stainless steel strip is not cracked and the product quality is excellent through secondary calendering processing on the super austenitic 904L stainless steel strip; and by means of the producing method, the rolling force required by calendering on the 904L can be greatly reduced, and stable calendering processing of the super austenitic 904L stainless steel strip is ensured.