Early business card boxes were mostly made of silver or copper, and later materials such as sandalwood, rosewood, rhinoceros hide, tortoiseshell, etc. appeared. Their shapes were mostly rectangular flat boxes, with connected small box shapes that opened up and down, as well as small box shapes with separate box bodies and lids. The pattern on the business card box combines various techniques such as carving, engraving, carving, and inlaying, and the workmanship is extremely exquisite and meticulous. Especially for business card boxes made of hardwood, they can be considered exquisite works of art. Craftsmen use knives instead of pens, and employ techniques such as round carving, transparent carving, flat carving, and line carving to depict patterns of mountains, waters, figures, flowers, birds, fish, insects, and opera stories on wooden boxes, giving them a delicate and exquisite artistic effect, adding the cultural and artistic charm of the business card box.