The original stone is composed of four black fine stones, which are rectangular cylinders with lettering on all sides, with a height of 620 cm and a width of 120 cm. The top of the monument is carved with a double-layer corolla surrounded by ganoderma lucidum moire, and there are three layers of stone platforms under the base, so it is called "stone platform filial piety" The original stone is now hidden in Xi 'an forest of steles.
During the Western Han, Wei and Jin Dynasties, after the Song, Qi, Liang and Chen Dynasties, there were nearly a hundred kinds of annotations to the Book of Filial Piety. As for the early Tang Dynasty, although there was a secret mansion, the Compendium was mostly incomplete. At that time, only the annotations of the Book of Filial Piety by Kong Anguo and Zheng Xuan were circulated. In addition, Huang Kan's book "Filial Piety" in the Liang Dynasty, although there are many mistakes, has been thoroughly studied. Therefore, Emperor Xuanzong of the Tang Dynasty called a group of Confucian ministers to discuss the annotation of the Book of Filial Piety. There are ten fallacies and seven confusions in Liu Zhiji's Annotation to Zheng Xuan, and other annotations in Sima Zhen's Annotation to Kong Anguo are colorful. Therefore, Emperor Xuanzong of the Tang Dynasty summed up the annotations of the former Confucianism, simplified them by deleting the complexity, took their meanings and used them as annotations. As for the annotation of the second year of Tianbao (743), it was published in the world. He wrote it in his own official script and called it Shitai Xiaojing.