On 2 January 2014, Sui transferred to China League One side Chongqing Lifan. He became the first choice goalkeeper on the third matchday after Chongqing lost the first two matches of the season, helping the club to win a 27-match unbeaten run and promoted to Chinese Super League. Especially, Sui set a new China League One record for consecutive clean sheets with 796 minutes on 2 August 2014, beating the previous record of 732 minutes set by Yu Ziqian of Dalian Aerbin in the 2011 season. On 8 March 2015, Sui made his Super League debut in the season's first match which Chongqing Lifan lost to Beijing Guoan 3–0. On 24 May 2015, in a Super League match against Liaoning Whowin, he left his goal unguarded to take a water break after Chongqing Lifan conceded a free kick. Liaoning's Ding Haifeng took the free kick quickly and scored the equalizer as Sui was still drinking water next to the goal post. He was fined ¥50,000 by the club but kept his position as a main player. He played 28 league matches for the club in the 2015 season, as Chongqing Lifan secured to stay in the top FLIGHT for the next season. He became the second choice goalkeeper of the club after Deng Xiaofei joined Chongqing in 2016 season.