After Liu Biao's death in 208, Huo Jun led his troops to Liu Bei and was very trusted by Liu Bei. In 212, Liu Bei obeyed Pang Tong's strategy at Yemeng Pass and attacked Chengdu from the south, leaving Huo Jun to guard it. As the subject said, Huo Jun refused Zhang Lu's persuasion to surrender, and then repelled the troops sent by Liu Zhang to raid Liu Bei's hometown. During this period, Huo Jun did not ask Liu Bei for help, and won time and troops for Liu Bei to get Yizhou. In 213, Liu Bei pacified Yizhou, feng Huo Junzi Tong Taishou, and together with Zhang Fei, the Brazilian Taishou Zhang Fei, was responsible for the defense of the northern border of Yizhou, and was a heavy vassal under Liu Bei. Huo Jun died of illness in 217. Liu Bei said: Such a person has made great contributions to the state, and I must personally mourn him.
Liu Bei, a communicator fanatic, still did not restrain after he arrived in Yizhou. Liu Zhang left a hand on him, and did not let him go to Chengdu, but went to Fucheng to personally greet Liu Bei. The meaning is very clear, this Chengdu should not go for the time being, first go north to destroy Zhang Lu and then say. Liu Bei ate and drank heavily in Fucheng for a few days, and then went straight to Ye Mengguan. What is strange is that Liu Bei arrived at Ye mengguan and was not busy fighting with Zhang Lu, but chose to make friends in the local area and win people's hearts. The old problem was committed again, liu zhang immediately realized the problem, so he constantly urged Liu Bei to fight against Zhang Lu, and now it was impossible to drive Liu Bei away, so Liu Zhang, in anger, slaughtered Zhang Song, who invited Liu Bei into Sichuan.
Huo Jun's insistence at Yemeng Pass saved Liu Bei's siege of Luocheng and Jingzhou's reinforcements. After pacifying Xichuan, Liu Bei, for Huo Jun's merits in defending Yemeng Pass, made him a general of Zi Tong Taishou and Pei, and asked him to guard the northern gateway of Yizhou with Zhang Fei. Huo Jun died of illness after three years in office and was buried in Chengdu. Liu Bei was very sad when he learned of this, and he said to Zhuge Liang, If Huo Jun had not insisted on defending Ye Meng Pass, why would I have taken Xichuan? Huo Jun has contributed to the country, and such an excellent general as him, I must personally go to mourn. So Liu Bei attended Huo Jun's funeral and stayed overnight in front of the tomb, which showed that Liu Bei attached great importance to him.
Liu Bei is a jun, Huo Jun is a subject, and a king guards the tomb for a subject, what a glory, even Pang Tong and Fazheng do not have this treatment, but Liu Bei did it, this is Liu Bei in order to thank Huo Jun for his merits to himself before he died, which shows that Liu Bei has considerable trust and respect for Huo Jun. As a famous general of the Shu Han Dynasty, Huo Jun led hundreds of people to hold the city for a year, refused Zhang Lu's persuasion to surrender, and repelled the siege of Liu Zhang's ten thousand people, which was also recorded in the annals of Shu Han history.