Is cheating on one side in a de facto marriage a crime?

Legal analysis: cheating on one side of the marriage is generally not illegal. China's law does not have this legal term cheating, this is the life of the people of extramarital affairs of a call. But if the cheating party and others to fraudulently obtain legal formalities for registration of marriage and although not marriage registration procedures, but with the husband and wife relationship *** with life, suspected of bigamy, belong to the offending behavior.

Legal basis: "Chinese People's *** and National Code" Article 109 One of the following circumstances, resulting in divorce, the party without fault has the right to request compensation for damages: (a) bigamy; (b) cohabitation with another person; (c) the implementation of domestic violence; (d) abuse, abandonment of family members; (e) there are other major faults.