Porcher pleaded no contest to the charge Wednesday in an Oakland County court. His sentencing was set for April 3.
Porcher was arrested on the misdemeanor assault and battery charge in December. The charge is punishable by up to 93 days in jail and a $500 fine.
Court records show Porcher and his wife, Kimberly, divorced in 2006. They have three children. The 38-year-old Porcher played 13 seasons for the Lions.