Pang Tong was a political strategist of Shu State during China's Three Kingdoms period. He was smart when he was young, simple and studious, knowledgeable and knowledgeable about current affairs. After many twists and turns, he was worshipped by Liu Bei as a military commander and took charge of military aircraft with Zhuge Liang. In 211, after Pang Tong advised, Liu Bei made up his mind to lead an army to meet Liu Zhang, and Liu Zhang invited Liu Bei to attack Zhang Lu. When the army arrived at Jiamengguan (now southwest of Guangyuan, Sichuan Province), Liu Bei stopped moving forward because the situation in Jingzhou changed, made a gesture of wanting to return, and asked about Pang Tong. Liu Bei followed Pang Tong's plan, captured his army and occupied Baishui Pass.

Why do Sun Quan and Liu Bei despise Pang Tong? According to the "History of the Three Kingdoms", "My ancestors were not very happy to study, but liked dogs, horses, music, food and beauty; Quan likes Zhou Yu best in his life. " So Sun Quan vowed not to use him. Later, Lu Su recommended him to go to Liu Bei's place. Pang Tong took the advice and came to take refuge in Liu Bei. However, if it is not reused, it shall not be ordered by Leiyang to die in the county and be exempted from official duties. Later, with the strong recommendation of Zhuge Liang and Lu Su, Liu Bei summoned Pang Tong again to talk about military affairs with him, which greatly valued him, so he worshipped Pang Tong for Zhizhong, and soon became a military commander with Zhuge Liang.