Blue and white porcelain (blue and white porcelain), also known as white blue and white porcelain, often referred to as blue and white, is one of the mainstream varieties of Chinese porcelain, is underglaze porcelain. Blue and white porcelain is made of cobalt ore containing cobalt oxide as raw material, painted on the ceramic body, and then covered with a layer of transparent glaze, a high temperature reduction flame firing. The cobalt material is blue after firing, and has the characteristics of strong coloring power, bright color, high firing rate and stable color. The original blue and white porcelain was seen in the Tang and Song dynasties, and the mature blue and white porcelain appeared in the Hutian kiln in Jingdezhen in the Yuan Dynasty. Blue and white in the Ming Dynasty became the mainstream of porcelain. The development reached its peak during the Ming Xunde period.

Kangxi blue and white porcelain is famous for its fine fetal glaze, bright blue and white, simple and diverse shapes and beautiful decorations. In the Kangxi Dynasty of the Qing Dynasty (1662-1722 AD, the emperor of the Qing Dynasty Aixinjueluo Xuanye), the economy and trade were developed. In the 19th year of Kangxi, Jingdezhen restored the imperial kiln factory, and blue and white porcelain made outstanding achievements. Kangxi blue and white is divided into three periods: early, middle and late: the early period is from the first year of Kangxi to the 19th year of Kangxi; The middle period is from the 20th year of Kangxi to the 40th year of Kangxi. The late period is from the 40th year of Kangxi to the end of the Kangxi dynasty, of which the blue and white porcelain is the most prominent in the middle of Kangxi.

A pear-shaped pot with an independent base. Its deeply curved spout is set on a raised mascara. Its handles are in the shape of the letter "J", with curled edges on the top and bottom, and raised leaves and palm fronds on the outside. This jar has a dome cap with a collar. The painting style includes randomly placed flowers and realistically depicted insects, shaded in gray. This decoration was popular in the 1730 s and was the first typical European style of porcelain painting. The patterns of flowers, fruits and insects are taken from the plant pattern book, hence the name "graphic flowers".