Han took part in the 2017
K-1 welterweight tournament, which was held at
K-1 World GP 2017 Welterweight Championship Tournament on September 18, 2017. He was eliminated in the quarterfinals however, as he lost a unanimous decision to Hitoshi Tsukakoshi. Over the course of 2021, Han was able to amass enough points in the
Wu Lin Feng -70 kg World Contender League to earn himself a place in the final four tournament. Although he was able to beat Ren Guohao by unanimous decision in the semifinals at
Wu Lin Feng 2021: WLF on Haihua Island on October 30, 2021, he himself suffered a unanimous decision loss at the hands of Ouyang Feng in the tournament finals at
Wu Lin Feng 2021: World Contender League 7th Stage on November 27, 2021. On March 26, 2022, Han took part in a four-man tournament at
Wu Lin Feng 528. In the semifinals he lost to
Luo Chao by unanimous decision. Han participated in a one-day, eight man -67 kg tournament at
Wu Lin Feng 2023: Chinese New Year on February 4, 2023. He earned his place in the finals, where he faced Zhou Jiaqiang, with unanimous decision victories over Mikel Sortino in the quarterfinals and Shang Xifeng in the semifinals. Han captured the tournament title with a second-round technical knockout of Jiaqiang. On May 27, 2023, Han defeated Alexander Skvortsov by unanimous decision at
Wu Lin Feng 538. On July 27, 2024, Han faced
Saiyok Pumpanmuang at
Wu Lin Feng 546. He won the fight by unanimous decision. ==Championships and accomplishments==