Yu Chang-hai was born on March 3rd,1941; birthplace: Hebei province china national arts & crafts master; Beijing municipal superfine arts & crafts master.
Yu Chang-hai entered Beijing Third Jade Carving Production Cooperation in 1956 for apprentice and began to learn of jade carving skill ,follows the famous artisan Li Huan-ting and Xu Mao-lin．In 1962，he took part in the training course of inherited the traditional jade carving techniques．In this training course，he studied carefully the famous artisans` jade carving workmanship ,and improve his own fine arts theory．Later he began to design & create jade carving works by himself．
Mr.Yu's works feature: uses jade materials very carefully，exquisite workmanship，fine carving，and adopts of various carving workmanship according to materials，and seeks the complete works` elegant, simple，generousness and taste．Mr.Yu has broken some traditional method of jade carving and innovates a new way in selection of themes according jade material．
Mr. Yu is the technical advisor of the manufacture the "Four Jadeite National Treasures,"and is the head designer of works of "Opulent Flower Potpourri Perfumer"which won the "Gold Cup Prize” (the rare masterpiece) of China National Arts & Crafts Hundred—Flower Awards in 1990．
The Works of "Arhat Potpourri Perfumer" obtained the "First Prize" of the excellent design & creation of china national Arts & Crafts Hundred—Flower Awards in 1982．
His works of "Inlaid Gems & Golden Wires Wine Sets" acquired the "Second Prize" of the excellent design & creation of china national Hundred—Flower Awards in 1984．
On Aug.2004, Mr.Yu acts as the head design & manufacture, the "Seal Treasure" of Beijing 29th Olympic Games.