This paper atemps to discuss this topic from a dgnanic angle. It is necessary to identify law interpretation's intension before studying the mechanism.

The judger is the certainly body of interpretation from the matter-of-course angle . And then the writer proposes some suggestions on the reform of present criminal law judicial interpretation system.

According to the New Criminal Law and judicial interpretation concerned, punishment on such marriages in the name of crime of bigamy does not go against the legal principles.