An embodiment of the invention provides an interleaved sequence constructing method, an interleaving-based information processing method and a transceiver. The interleaved sequence constructing methodcomprises the steps of constructing a plurality of pseudo random sequences according to the preset length of a to-be-constructed interleaved sequence; for each constructed pseudo random sequence, constructing at least one corresponding numerical digit random sequence according to the numbers of more than two kinds of numerical values in the pseudo random sequence; and for each constructed pseudorandom sequence and the corresponding numerical bit random sequence, and constructing a corresponding interleaving sequence according to a mapping relation between the pseudo random sequence and the numerical digit random sequence so that a plurality of interleaving sequences are used as a multiple-access resource for distribution. According to the interleaved sequence constructing method, relatively low computation amount and relatively short time delay are realized in a construction mode of combining the interleaved sequence or pseudo random sequence and the numerical digit random sequence;the combination of the interleaved sequence, or the pseudo random sequence and the numerical digit random sequence is used as a multiple-access user identification, thereby facilitating distribution to the receiver at the user end and facilitating standardization.