Abstract:The legal interests of perjury have changed from citizen’s personal rights to state’s judicial interests in Chinese criminal legislation. The legal interests of perjury can be comprehended in detail as “the judicial applying of wordage evidence”. Regarding the victims as one of the subjects of perjury is rational. Suspects and defendants can also be the subjects of perjury in several conditions. Anyone who records wordage evidence would commit perjury if he makes a false record intentionally. The purpose of perjury that is provided by criminal law does not meet with the requirement of the legal interests of perjury. In accord with these legal interests, “objective theory” is more reasonable on the cognizance of “false”. It is unreasonable that the criminal law limits perjury in criminal proceedings.