Nadir belhadj, who has dual nationality, was selected into the French youth team U 18 in 2000 and made two appearances for the team. On March 30, 2004, nadir belhadj made an unofficial appearance in the Algerian national team and played in a friendly match with the Belgian RAA club. On April 28th of the same year, nadir belhadj completed his first official game in the national team. Played a friendly match with China (Algeria lost 0-/kloc-0). On June 5th, 2007, Nadir Belhajj scored two yuan in a friendly match between Algeria and Argentina (Algeria lost 3-4), making his international debut.

Number of appearances for the national team: 37 goals: four Nadir Belhajj started his career in the old French team Reims, and Nadir Belhajj became a member of Reims at the age of 1999 17. However, at that time, Reims was full of talents and was very competitive in Ligue 1. Nadir belhadj never got a chance to play in the first team. In the summer of 2002, he was loaned to the then Ligue 2 team Guggenheim, and a year later, nadir belhadj officially joined the team.

In 2004, nadir belhadj moved to France B car and played for two seasons, which was a good performance. In the summer of 2006, he was attracted by Lyon, the French giants at that time. Lyon signed him for 3.2 million euros and temporarily loaned him to Sedan to continue playing football. In the summer of 2007, nadir belhadj officially joined Lyon. However, due to the performance of Italian World Cup champion left-back Grosso in Lyon, nadir belhadj only played nine games a season. In the summer of 2008, nadir belhadj returned to Longce for 3.6 million euros.

At the beginning of 2009, nadir belhadj was loaned to Portsmouth. In the summer of 2009, he completed the transfer and joined for 4.5 million euros.