At that time, the Southern Tang Dynasty people because the Later Zhou army was more and more anxious to attack the city in Shouchun, and they were self-conscious of the strength of water warfare, so they launched a large number of huge ships to anchor in Haozhou and Sizhou, and the Later Zhou army was in a very unfavorable situation. Lin Renzhao, a general of the Southern Tang Dynasty, led more than 1,000 troops, advanced by land and water, and used several boats loaded with firewood to ignite the wind down the river. When the fireboat was about to burn the pontoon bridge of Hou Zhou, the people of Hou Zhou were very worried, and soon the wind direction suddenly reversed, **retreated slightly, and Zhang Yongde's march was defeated**.

Zhang Yongde also sent people who were accustomed to water to ambush under the ** ship at night, and implicated his boat with iron locks. The Tang ship could not move, so there were a lot of drowning **, so the Zhou people captured dozens of giant ships, and Zhang Yongde took off the gold belt after the victory and rewarded those who were familiar with the water. At a place more than ten steps away from the pontoon bridge, the Yangtze River was crossed by an iron cable of more than 1,000 feet, and a giant tree was connected, so the defense was more reliable. Soon more than 1,000 ** on the north bank of the ** river were defeated, and dozens of warships were obtained, and many of them drowned. The imperial court issued an edict to praise Zhang Yongde for his military exploits.

In the winter of the third year of Xiande (956), Zhang Yongde was promoted to the front of the palace.

In the fourth year of Xiande (957), Zhang Yongde returned to the court after conquering the battle of Shouzhou, and was awarded the official positions of inspector and lieutenant of the Zhenning army.

In the summer of the fifth year of Xiande (958), the Khitan invaded the border, and Zhou Shizong Chai Rong ordered Zhang Yongde to lead 20,000 troops and horses to resist the Khitan invasion. Zhang Yongde followed Zhou Shizong's Northern Expedition, and after returning to the army, he was stationed in Tanyuan, and was relieved of his military powers. In the sixth year of Xiande (959), after Emperor Gong succeeded to the throne, Zhang Yongde was awarded the envoy of the Loyal Army.

In the first year of Jianlong (960), Zhao Kuangyin, Taizu of the Song Dynasty, succeeded to the throne, Zhang Yongde was added to the official service, and after entering the dynasty, he was awarded the Wusheng Military Festival. Entered the palace to meet Song Taizu, was summoned to the back garden, talked about old things with the emperor, drank with a huge cup, and Taizu always called him with a horse. At that time, the Later Han had not yet been destroyed, and Song Taizu privately asked him for strategy, Zhang Yongde said: "Although the Later Han army is small but strong, and with the support of the Khitan, it is not easy to attack. The minister thought that he should set up more guerrilla armies every year to interfere with their agricultural affairs, and at the same time send envoys to communicate with the Khitan and cut off their support, so that he could capture the Later Han. Song Taizu was convinced of his opinion.

In the second year of Taiping Xingguo (977), Zhao Guangyi, Taizong of the Song Dynasty, succeeded to the throne, and Zhang Yongde was ordered to come to the court. In the fifth year of the Taiping Rejuvenation (980), he was demoted to the rank of general of Benwei for the crime of exempting Qin and Longzhu wood from taxes, but he was reinstated a few months later. In the sixth year of Taiping Xingguo (981), he was named Deng Guogong.

In the middle of the Yongxi year, the three states of Zhicang, Xiong and Ding were successively known.

In the first year of Duangong (988), worship was the envoy of the Anhua Army. The edict returned to the dynasty, and the two roads in Hebei were lined up, and the army was stationed in Dingzhou. He fought in the Khitan and won a lot. In the second year of Duangong (989), he was worried because of his mother's funeral, but he was regained from his love. In the first year of Chunhua (990), he replaced Tian Chongjin and entered Zhizhenzhou.

In the second year of Chunhua (991), he was reappointed as the commander of the Taining Army, and was sentenced to annex the state and deploy the capital. Since the time of the fifth dynasty, the soldiers were appeased by soldiers, and the feudal towns indulged their subordinates to operate profitably. At the beginning of the Song Dynasty, heroes still maintained this bad habit. Taizong had just succeeded to the throne, and ordered his ministers not to transport and sell goods for profit when they were sent by order, nor to order people to operate everywhere and compete with the people for profit. Zhang Yongde was in Taiyuan, and he also ordered his soldiers to sell tea to make a profit, and even went out of the customs to smuggle sheep to make a profit. In the third year of the Dao (997), Song Zhenzong succeeded to the throne, and Zhang Yongde was named the Duke of Weiguo. Not long after, he was awarded the official position of the Zuo Jinwu Street War.

In the first year of Xianping (998), Zhang Yongde repeatedly asked for Zhishi, and was allowed to be awarded the title of prince and teacher, branch of Xijing Luoyang, and Ren Ran used his grandson Dali Temple Cheng Zhang Wenwei as an official near Luoyang, Xijing, in order to take care of his ancestor Zhang Yongde. In the winter of the second year of Xianping (999), the Khitan invaded the border, and Song Zhenzong was about to drive the expedition in person, because Zhang Yongde was the general, and he issued an edict to enter the palace to ask for advice, give him a seat, and ask him about the plan for side affairs. Because he was too old to accompany him, he stayed in the capital and served as an inspection envoy in and around Tokyo.

In the third year of Xianping (1000), he was awarded the title of Taishi of the inspection school, the festival of the Zhangde Army, and the Zhitian Xiongjun. Soon, because Zhang Yongde was old, he was ordered to return to his town. He died in the fall of that year at the age of seventy-three. The imperial court sent Feng Shougui, the envoy of the inner garden, to escort the coffin back to Beijing and posthumously present the Zhongshu order. Among Zhang Yongde's grandchildren, there are five people who have been promoted.