As of November 2021, he is ranked the #8 Super Bantamweight in the world by Combat Press.
[1] Zheng Junfeng was born in started practicing Sanda at the age of 8.
[2] Junfeng's first notable international victory came against the japanese champion Hirotaka Urabe who he beat by majority decision at Krush 77 on July 16, 2017.
In 2019 Junfeng joined the Wu Lin Feng organization, the next year he entered the Super Rookie Tournament.
On August 28, 2020 at Wu Lin Feng 2020: China New Kings Tournament Final Junfeng beat Wang Zhiwei for the Wu Lin Feng China New King title and the IPCC China -63 kg title.