The 28-year-old makes the switch from from Roma after spending two-and-a-half years at the Italian club.
He scored scored 17 times in his 71 Serie A appearances for Roma, including six in 14 games this season.
Gervinho, who has twice been voted his country's footballer of the year, moved to Roma from English Premier League side Arsenal in 2013.
Ivory Coast international forward Gervinho has signed for Chinese Super League side Hebei China Fortune FC.