The Ivory Coast international could cost the Chinese club a further €1m (£760,000) depending on his and his team's performances in the Super League.
Gervinho, who has been capped 71 times by his national side, spent two seasons at Arsenal before joining Roma in 2013.
Gervinho in Cina, la foto che sancisce l'addio alla Roma: giocherà nell'Hebei pic.twitter.com/LABhpZ9yBU
— Goal Italia (@GoalItalia) January 26, 2016
Hebei China Fortune came second in China’s League One last season and will begin the new campaign in the Super League in March.