The invention discloses a forwarding apparatus and method and a MPU, wherein the forwarding apparatus comprises a hash generator, a comparator and a forwarding logical unit; the omniumgatherum producer hashes address bit with the number of J to generate hash bits with the number of K. the address bit with the number of J is multiple bits of a storage address appointed by a load instruction or a save instruction, and the K is an integer bigger than 0 while J as integer bigger than K. When the address bit with the number of L appointed by the load instruction matches the address bit with the number of L appointed by the save instruction and the hash bit with the number of K of the load instruction matches with the hash bit with the number of K of the save instruction, a comparator outputs afirst preset boolean value, or else outputs a second preset Boolean value with L as integer bigger than 0. when the comparator outputs the first preset Boolean value, the forwarding logical unit forwards the data to a load instruction from a save instruction, and when the comparator outputs a second preset boolean value, no data is forwarded. The invention might reduce non-correct or false transition forwarding number performed by the MPU.