A true randomized number post-treatment system comprises a true randomized number obtaining module, a pseudo randomized number generation module and a true random XOR module; the true randomized number obtaining module obtains a true random sequence of a first quantity paths; the first quantity paths has at least two paths; the true random sequence is grouped, wherein at least one group comprises at least two paths of the true random sequence; the true random XOR module receives the true random sequence from the same group; a first intermediate sequence is generated after conducting XOR to the true random sequence in the same group, and the first intermediate sequence is sent to the pseudo randomized number generation module; the pseudo randomized number generation module outputs a second intermediate sequence based on the received first intermediate sequence; the second intermediate sequence in the second quantity paths is provided; and the second quantity paths is less than the first quantity paths. In this way, the anti-attack capability of the rear processing result processed by the true randomized number post-treatment system is enhanced.