Qian Weicheng liked painting very much since he was a child. He began to learn freehand brushwork from his grandmother Chen Shu, folding branches and flowers, sketching and rendering, which are similar in shape but the same. Later, he studied landscape painting under the painter Dong Bangda. Painting landscapes, mountains winding, flowing springs gurgling, smoke floating and water rippling. The composition is orderly and the artistic conception is quiet. Stones and stones use pens. His paintings are as far away as Huang, Ni Zan, Zhenwu and Wang Meng in the Yuan Dynasty, and as close as Wang Shimin, Wang Jian, Wang Hui and Wang in the early Qing Dynasty. . "On Painting in Tongyin" said that his landscape paintings "also copy the foothills, with deep hills and valleys, beautiful trees and stones, which are quite aesthetic." When Qian Weicheng took part in the imperial examination, few people knew that he was good at painting and calligraphy. Until the champion and later, in a hunting with Qianlong, Qianlong shot and killed a tiger, so Qian Weicheng was ordered to create a picture of shooting tigers. After the work was completed, Gan Long praised it many times and ordered it to be engraved on the stone in Mulan paddock. From then on, Qian Weicheng became famous in the painting world. In Qian Weicheng's paintings, the angular stone, double hooks, slightly twisted tree trunks, as well as the exquisite meticulous brushwork and light ink lines in the center all contain Dong Bangda's brushwork, but he is better at the alternation of meticulous brushwork with turquoise and ochre, which also shows the genre style of "Four Kings" in the early Qing Dynasty, and his works often present a rich palace. There are more than 160 works of Qian Weicheng in the catalogue of Qianlong collection, which shows that Emperor Qianlong appreciated Qian Weicheng's works. The famous is "Nine Autumn Atlas".
Qian Weicheng is good at calligraphy, neat and meticulous. "Zong Pan works in calligraphy, and calligraphy is Dongpo." He studied under Su Dongpo, one of the four great calligraphers in Song Dynasty. The pen is light and moist, and the bones are natural. He can recite poems and take Du Shaoling as his ancestor. Known as "Qian Wenmin Shangshu, Shi Zong Shaoling, Shu Gui Su Wenzhong", it can be said that poetry, calligraphy and painting are integrated.