"Twenty Products of Longmen" is an inscription rubbing of the twenty statues in Longmen Grottoes, and is a representative work of the calligraphy style of the Northern Wei Dynasty. "Shi Ping Gong Statue" was originally an inscription attached to the Buddhist niche. Its full name is "Bhikkhu Huicheng's late father Shi Ping Gong Statue Statue". It was carved on the north wall of Guyang Cave, Longmen, Luoyang, Henan in the 22nd year of Taihe (498), the reign of Emperor Xiaowen of the Northern Wei Dynasty. . The inscription is written by Meng Da and written in regular script by Zhu Yizhang. The difference between this stele and other stele is that the entire stele is carved using the Yang carving method, with word-for-word boundaries, which is the only one seen in stone carvings in the past dynasties, and is unique among statue records. The content of the text expresses the religious feelings of the person who created the statue, and also prays for blessings and eliminates disasters for the deceased. It was first discovered by Huang Yi (1744-1801) during the Qianlong period of the Qing Dynasty. It was valued by the calligraphy community and was included in the "Twenty Products of Longmen". The inscription on this stele is cut in square strokes, with heavy strokes at the folds, a flat and square structure, and dotted lines. The strokes are thick and full, sharp and majestic. It is regarded as the representative of the vigorous style of Wei stele's square brush.
Kang Youwei said that the Longmen stone carvings are "all majestic and majestic, with extremely expressive ideas and extremely regular brushwork." The "Statue of Duke Shi Ping" is a representative work among the Longmen stone carvings.