 Although he helped the side finish in second place behind Kashima Antlers, Jung Sung-ryong played in the final of Emperor's Cup against Kashima Antlers but his team lost 2–1.In his first season at Kawasaki Frontale, Jung Sung-ryong went on to make thirty–six appearances in all competitions.Ahead of the 2017 season, it was announced that Jung Sung-ryong would be serving as the club's vice captain.