At the World Cup meet in Doha in March, she won the gold medal on the balance beam and placed second on floor exercise behind her teammate Jiang Yuyuan.

After posting three solid routine on bars, beam and floor, she took a shot on vault by attempting the double twisting Yurchenko and succeeded with a clean landing to guarantee the win over Yang Yilin and Sui Lu from Guangdong and Shanghai, respectively.

She became the fourth beam world champion of Chinese team, after Mo Huilan, Ling Jie and Fan Ye.

In addition, she finished seventh on the floor exercise and eleventh in the all-around competition, after an uncharacteristic fall on her own strong event, balance beam.

She was also chosen to compete in the 2010 Asian Games, where she won a gold with the team and an individual silver on the balance beam behind her teammate, Sui Lu.

In November, she won an all-round title in the Chinese Winner Champions held in Hong Kong over her younger teammates.

In 2012, despite injuries, Deng regained the ability to vault a double twisting Yurchenko which was urgently needed for the Chinese team.

After finishing sixth in the individual all-around final, Deng rebounded and won the women's beam gold medal with a score of 15.600.