According to Section 1516 of Civil and Commercial Code, Grounds for divorce are as follows:
(1) The husband has given maintenance to or honored such other woman as his wife, or the wife has committed adultery, the other spouse may enter a claim for divorce;/
(2) One spouse is guilty of misconduct, notwithstanding whether such misconduct is a criminal offense or not, if it causes the other:
     (A) to be seriously ashamed;
     (B) to be insulted of hated or account of continuance of being husband or wife of the spouse having committed the misconduct; or
     (C) to sustain excessive injury or trouble where the condition, position and co-habitation as husband and wife are taken into consideration; the latter may enter a claim for divorce;/
(3) One spouse has caused serious harm or torture to the body or mind of the other or has seriously insulted the other or his or her ascendants, the latter may enter a claim for divorce;/
(4) One spouse has deserted the other for more than one year, the latter may enter a claim for divorce;
     (4/1) One spouse has been sentenced by a final judgment of the Court and has been imprisoned for more than one year in the offense committed without any participation, consent or in the knowledge of the other, and the cohabitation as husband and wife will cause the other party sustain excessive injury or trouble, the latter may enter a claim for divorce;
     (4/2) the husband and wife voluntarily live separately because of being unable to cohabit peacefully for more than three years, or live separately for more than three years by the order of the Court, either spouse may enter a claim for divorce;/