In 1999, the "Leisure Time and Space" column of the 17th issue of the "China Splendid" pictorial published a page of "The Best Beijing Hu" produced by Liu Zhenghui. In January 2000, "China Peking Opera" magazine, on the occasion of the new millennium, published four famous pianos whose names were inscribed by the famous contemporary calligrapher Zhang Ruiling: "White Dragon Panzhu", "Yin and Yang are diametrically opposed", "Celestial Sky and Forest Sea", " A thread reaches the sky.”
In 2000, the book "Jinghu Performance Tutorial" compiled by Liu Zhenghui was published by China Opera Publishing House and has been reprinted many times.
In April 2001, the "New Customs" special section of "China Culture News" specially reported Liu Zhenghui's Jinghu production art - Liu Zhenghui, an expert in Jinghu production.
In 2002, Liu Zhenghui was hired as the vice president of the Beijing Musical Instrument Society. In 2002, the special column "Beijing Folk Art" in the sixth series of CCTV 3's "Going Behind the Scenes" interviewed and introduced Liu Zhenghui's new piano-making technology.
In December 2002, Taiwan's "Hongbao" conducted a special report on Liu Zhenghui; the title was: Liu Zhenghui's Beijing-Hu complex. In 2003, Liu Zhenghui was appointed as the executive director of the Chinese Reform Society.
In 2004, Liu Zhenghui was elected as the vice president of the second Chinese National Instrumental Music Society. In September 2004, the "China Today" Illustrated Personality Online column used a large-scale report to introduce the violin-making art of Liu Zhenghui, a visiting scholar-type luthier with the title: Right in the Age of Fame, Favorable Music and Three Talents.
The first national Jinghu exhibition held by Liu Zhenghui at the Beijing Opera Museum in 2005 not only allowed Peking opera lovers to understand the history of Jinghu production, but also allowed them to appreciate his fine Jinghu productions up close, including "Sesame Flower" , "Jade Belt Festival", "Dragon Bamboo", "Venus", "One Line of Sky", "Eighteen Arhats" and other original Jinghu, as well as: root carving, bionic leather, portraits, facial makeup, waist hanging and other series of craft Jinghu. People can see that Jinghu is not only an ordinary musical instrument, but also a handicraft and artwork with great collection value.
In 2005, he launched the environmentally friendly product - Bionic Leather Jinghu, which he had developed over many years of painstaking efforts to replace real snakeskin. The theme was "Musical Instruments·Art·Technology" organized by the Ministry of Culture and the China Musical Instruments Association. "It was demonstrated at the 3rd International Performing Arts Equipment and Technology Forum and received high praise. At the same time, he launched the self-developed environmentally friendly Jinghu "rosin heater", "bionic leather Jinghu" and "Jinghu iron rod bow", which have obtained national patents. In 2006, he recorded another CD and served as the Jinghu performer of the Yan School in the "Comprehensive Accompaniment of Famous Peking Opera Styles in China".