The invention discloses a correction confidence propagation method based on set destruction. The correction confidence propagation method comprises the following steps: step 1, receiving a code word which is transmitted by an additive Gaussian white noise AWGN channel and is modulated by binary phase shift keying BPSK through a receiving end; step 2, setting the number k of iterations to be 0, calculating vn and zn, and setting vmn and umn to be equal to zero; step 3, updating the bit information vmn of the bit node n in the kth iteration; step 4, updating verification information umn sent bythe bit node n to the verification node m; 5, updating the iteration hard decision value zn of each bit node n, and correcting the bit node variable information with information oscillation; and 6, judging whether a preset iteration stopping condition is met or not, if so, terminating the decoding process and outputting the kth iteration hard decision vector zk of the bit node n, otherwise, returning to the step 3.