Wei Jiansu, courtesy name Huiwei, was born in Jingzhao. His father's name was Wei Cou, and he served as Yin of Taiyuan during the Kaiyuan period. Wei Jiansu passed the imperial examination. During the Jinglong period, he served as an official in the royal palace and joined the army, and served successively as Wei Zuo and Henan Fucang Cao. He mourned for his father. When the period of mourning expired, he was appointed as the Prime Minister of Dali Temple and granted his father the title of Duke of Pengcheng County. He was implicated and convicted and served as Sima of Fangzhou. He was called into the imperial court and served as a member of the Treasury Department, Wai Lang, and as a San Dafu of the Chao Dynasty. He successively served as the second member of the Right Division's Military Department, the second member of the Left Division's Military Department, and was promoted to the admonishment doctor. In the fifth year of Tianbao's reign, he served as the deposed envoy of Jiangxi, Shannan, central Guizhou, and Lingnan provinces. He inspected customs and impeached officials. Wherever he went, officials were afraid. When he returned from his post as an envoy, he was entrusted with the task, refuted and corrected, and corrected violations, which greatly revived the old system of Taige. Soon after, he was appointed Minister of the Ministry of Industry and Finance and was appointed as Youcheng. In the ninth year, he was promoted to Minister of the Ministry of Civil Affairs and became a doctor of Yinqingguanglu. Wei Jiansu was tolerant and tolerant, unwilling to offend others. He had presided over the examination for many years and was praised by people for his fair selection of officials. At that time, the right prime minister Yang Guozhong was in power, and the left prime minister Chen Xilie was afraid of his power. He was submissive and did not dare to express his opinions. Xuanzong knew this and was unhappy. In the autumn of the thirteenth year of Tianbao, it rained continuously for more than sixty days. Almost all the walls of the houses in the capital collapsed and were destroyed. Nineteen square meters were flooded. The emperor thought that the prime minister might be incompetent and there was such a bad omen, so he ordered Yang Guozhong to carefully select upright people. At that time, Ji Wen, the Minister of War, was favored, and the emperor wanted to appoint him. Yang Guozhong believed that Ji Wen was An Lushan's assistant and was afraid of his authority, so he made a memorial to prevent this. Yang Guozhong visited Baohua, Song Yu and others from Zhongshushe. Dou Hua and Song Yu said that Wei Jiansu was generous and elegant, with a soft and easy-to-control personality. The emperor also agreed to this matter because of his old friendship with him when he served in the Prime Minister's Palace. In August of this year, he was appointed as the Minister of the Ministry of Military Affairs and Tongzhong Shu's disciple Hu Zhangshi, and served as the bachelor of Jixian Academy. Since Wei Jiansu was cited by Yang Guozhong. I was grateful to him in my heart. At that time, An Lushan and Yang Guozhong were competing for favor and were suspicious of each other. Wei Jiansu did not care about right and wrong and just signed his name, which caused the dangerous Hu people to rebel without saying a word. In June of the fifteenth year, Ge Shuhan was defeated in Taolin and Tongguan fell. That month, Xuanzong fled in panic, not knowing where he was going. Yang Guozhong requested to go to Chengdu because he was the envoy to Jiannan. Wei Jiansu, Yang Guozhong and Wei Fangjin, the imperial censor, met the emperor at Yanqiu Gate and escorted him to Xianyang. The next day, when we arrived at Maweiyi, the soldiers and civilians could not get food and made rude remarks. General Longwu Chen Xuanli was afraid that they would cause rebellion, so he discussed with Li Huguo and the crown prince of the Feilong Ma family, requesting that Yang Guozhong be killed to stabilize the morale of the army. On the same day, Chen Xuanli and others led the imperial army to surround the palace and killed all the Yang family. Wei Jiansu escaped and was killed by the rebels. The crowd shouted: "Don't hurt Prime Minister Wei!" Someone he knew saved him and saved him from death. When the emperor heard about this, he asked the longevity king Li Hao to comfort him and give him medicine to treat his injuries. Wei Fangjin was killed by rebel soldiers. On that day, Wei Jiansu was the only court official. Staying at Mawei that night, the emperor ordered Wei Jiansu's son, Jingzhao Prefecture Secretary Lu, to join the army and serve as censor Zhongcheng, acting as the envoy. Before setting off in the early morning, the officers and soldiers of the Sixth Army said: "Yang Guozhong has rebelled and can no longer go to Shuchuan. He requested to go to Hexi and Longyou." Some said they would go to Lingwu and Taiyuan, while others said they would return to the capital. There were various discussions. The emperor wanted to go to Jiannan, but he was afraid that it would go against the sergeant's wishes, so he didn't say anything. Wei Er said: "Returning to the capital requires armaments to resist the rebels. Now that the number of soldiers and horses is small, I am afraid it is not a foolproof strategy. It is better to go to Fufeng for the time being and then slowly consider where to go." The emperor asked everyone, and everyone thought it was correct, so he ordered the crown prince to come to the rear. . When the emperor arrived at Fufeng County, the troops accompanying him were planning their own way out and spoke very rudely. Chen Xuanli could not stop it, and the emperor was worried and frightened when he heard it. It happened that Yizhou contributed 100,000 pieces of colorful silk fabrics to the imperial court in the coming spring, so he appointed Mengyang Wei Liu Jingwen, who was in charge of the escort, as the supervisory censor. When they came in, the emperor said to them: "You and others are all meritorious officials of the country. Their service has always been outstanding, and my generous rewards are usually generous. Because the rebellious Hu people have failed to live up to their kindness, they have to hide. I know that it is difficult for you and others to say goodbye to their parents and wives." "Son, I don't have time to say goodbye to the Nine Temples." The emperor burst into tears as he spoke. He also said: "I am going to Shu now. The roads in Shu are difficult and dangerous. If too many people go there, I am afraid it will be difficult to supply. Now you have these colorful silk fabrics. You should divide them up on the spot and plan your own way out. I have my own children, eunuchs, etc. Follow me, I will say goodbye to you." Everyone bowed to the ground and cried, saying: "I will never leave your majesty, whether in life or death." After meeting for a long time, the emperor said: "Let me go and stay as I please." From then on, the bad words stopped. In July, he arrived in Brazil County and appointed Wei Jiansu as concurrently serving as left minister and military minister. A few days later, when I arrived in Shu County, I was granted the title of Dr. Ziguanglu, the Duke of Bin, and appointed one of his sons as a fifth-rank official. That month, the crown prince ascended the throne in Lingwu, but due to road blockage, the post was blocked. In August, Suzong's envoy arrived and learned that the prince had ascended the throne in Lingwu. Soon after, Wei Jiansu and Prime Minister Fang Guan were ordered to go to Lingwu as envoys with the national treasure seal and jade book to announce the imperial edict of passing the throne, and by the way, they held the ceremony of installing the new emperor. Before setting off, the emperor said to Wei Jiansu and others: "The emperor has been benevolent and filial since he was a child. He is different from other princes. How could I not know this? In the past thirteen years, I had the intention of passing on the throne. It happened that there were floods and droughts that year. , people around me persuaded me to wait for a good harvest. Recently, An Lushan rebelled, and the world was shaken. I had already given instructions when I left Mawei in the past. Now that the emperor has accepted the destiny, I feel relieved. . Please go away and try your best to assist him.

It is my hope that the king will be reborn in times of trouble, as has been the case since ancient times. Your ministers will be loyal to the court, put the country first, and pacify the Central Plains as soon as possible. "Wei Jiansu and others could not help weeping. At the same time, Wei Jiansu's son Wei E and Zhongshusheren Jia Zhi served as the judges of the ceremony. At that time, Suzong had returned to Hue County. In September, Wei Jiansu and others came After the ceremony of enthroning the emperor was completed, he followed the emperor to Pengyuan County. When Suzong was the prince, he had already heard of Fang Guan's name, so he treated him with great respect; because Wei Jiansu had been attached to Yang Guozhong, he was slightly ignored the next year. , arrived in Fengxiang. In March, he was appointed Zuopushe, exempted from political affairs, and Miao Jinqing, who retired as Secretary of the Ministry of Constitution, replaced him as Left Prime Minister.

At the beginning, Suzong was in Fengxiang. After the war, laws and disciplines were not established, and the three departments of the Ministry of War and the Ministry of Personnel