Then Joo-Ho began his international career and played for the South Korea U-20. He became a member of the South Korean national team in 2010 along with another teammate - player Lee Bum-young. He made his first international cap for South Korea at the friendly match against Finland on January of 2010. After two years since he played in the South Korean national team, he was recalled for their World Cup qualifying matches against Qatar and Lebanon.

After career in Japan, Joo-Ho signed a four-year contract with club Basel (Swiss Super League) in the 2011. In the same year he played with Uhrencup club and won the tournament. In august of 2011 Joo-Ho was shown with league debut, where his club has defeat against FC Luzern with 3:1 away. Then he established himself as the best left back of Basel club, and helped his team become the first Swiss club for getting to the knockout stages of a UEFA Champions League. Park Joo-Ho won the Double - Championship title of the League at the end of the season. Also he won Swiss Cup with the Basel club. In the next season Park lost his place as a first-choice in their defense, because team rotation. Team played twenty European games, Champions League qualifiers and Europa League, so Park Joo-Ho for a while was in the shadow, but still came to 21 League matches. His first league goal for the Basel team was on April 21, 2013, in the 2–2 away draw against Thun team. Park won the Championship title again in the end of 2012–13 season and was Swiss Cup runner up with Basel too.

In the games of Europa League UEFA in the 2012-2013, Park’s team was in semi-finals and played against UEFA Champions in the last year - Chelsea, but lost with score 2–5 on aggregate. In the middle of 2013 Joo-Ho signed a two-year contract with FSV Mainz 05, he leaved from Baisel club. On May of 2014, Park Joo-Ho joined the South Korean squad for the 2014 World Cup in Brazil by replacing injured Kim Jin-su. For the new team Mainz, he scored his first goal in the September of 2015, and win over FC Krasnodar, he made it in a last-minute, in the third minute of stoppage time.

His annual salary is around  108000 euros with a weekly salary of around  9000 euros, 9,000 euros which he receives from playing for his current club of Ulsan Hyundai FC and has a market worth in the region of  750,000 euros as of June 2018.