Qi Xu (11th century A.D.) [Northern Song Dynasty], a native of Jiangnan, was born and died in an unknown year. Gong Shanshui, figures, flowers and bamboos, feathers, especially good at drawing cattle, there is a legacy of Dai Song. The painting of bamboo feathers, buffalo and cat. Xuanhe Picture Book recorded 44 paintings hidden by the imperial palace, such as "Reflected Bull Picture", "Crossing Buffalo Picture", "Nectarine Picture", "Four Happy Chess Picture", "Fishing Picture of the Yangtze River", "Xiaoxiang Encounter the Pastor Picture", "Drawing Cockscomb Flower Picture", "Bullfighting Picture" and "Cattle Picture". The masterpieces handed down from generation to generation are "Grazing Grazing Pictures in Jiangshan". They are silk, colored, 47.3 cm in length and 115.6 cm in horizontal. Nearby, there are 16 cattle farming, 16 cattle farming children pacing ashore from the water, water drinkers, bathers in the water, competitors, calves chasing cows in different shapes, lively and interesting. Herdsmen have mountain singers, pipers and loud voices. Callers, innocent and lovely, like the sound of its music, like its joy; and the lake quiet, lush trees, hills ups and downs, light rain will clean up the world spotless, a school of beautiful rivers and mountains in the south of the Yangtze River, people can not help but love. The whole picture is bright in composition and vigorous in brushwork. In front of the volume, Jin Zhangzong and Yan Jing signed the title "Grazing Map of Qixu Jiangshan Mountain", which is a solitary handed down version. It was once collected by the Qing Neifu and is now stored in the Palace Museum.