In July of the twenty-third year of Yuan Zhizheng (1363), Chen Youliang had besieged Nanchang for nearly three months, and Liao Yongzhong went with the army to reinforce and fought to the death with the enemy at Poyang Lake. In this battle, Liao Yongzhong shot and killed the enemy general Zhang Dingbian, and Chen Youliang's troops suffered many casualties. The next day, the two sides fought again. Liao Yongzhong and others drove six small boats into the enemy formation, opened a killing spree, rushed left and right, and frightened the enemy into a dissipation. As a result, the morale of Taizu's army was greatly boosted and their courage was doubled. From morning to dark, Chen Youliang's troops were defeated. Chen Youliang had no choice but to lead the army to flee and run to the mouth of the Jingjiang River, Liao Yongzhong and others galloped to catch up, the defenders of the Jingjiang Estuary blocked Chen Youliang, and Chen Youliang was shot dead in the chaotic arrows.
In September, Taizu personally recruited Chen Li, the son of Chen Youliang. Liao Yongzhong, Chang Yuchun, Kang Maocai and others followed Taizu to fight. surrounded the city of Wuchang, where Chen Li was located. In the twenty-fourth year of Yuan Zhizheng, Chen Li's reinforcements were defeated by Chang Yuchun, and Chen Li had no choice but to surrender. After returning to Nanjing, Taizu Zhu Yuanzhang wrote eight big characters on the lacquer plaque, "Outstanding General, Zhimai Xiongshi", commended Liao Yongzhong, and ordered him to hang on the door.
Soon after, Liao Yongzhong was named the general of Zhengnan, and Zhu Liangzu was the deputy general, and marched into Guangdong from the sea. All the way, the cities of Guangdong surrendered one after another. Guangxi also successfully fought for peace, and successively surrendered Wuzhou, Xunyang, and Liuzhou. Then he ordered Yang Jing to attack the unsurrendered prefectures and counties. Liao Yongzhong himself personally led the army to conquer Nanning and surrendered Xiangzhou. The recovery of the two Guangxi provinces went smoothly.
In the third year of Hongwu in the Ming Dynasty (1370), Liao Yongzhong accompanied the general Xu Da to the north, conquered Chahannaoer (now Hebei), and returned to Beijing and was sealed.
For Deqinghou. In the fourth year of Hongwu, Liao Yongzhong followed Tang and Shu and served as the deputy general of Zhengxi. Tang He led the army to be stationed at Daxikou first, and Liao Yongzhong led the army to Sichuan first. Liao Yongzhong led the naval army to storm Chongqing by boat, and soon reached Tongluo Gorge, where the Shu lord Mingsheng surrendered. Shu then settled down. In the fifth year of Hongwu, Liao Yongzhong's northern expedition arrived in Helin, and in the sixth year of Hongwu, Liao Yongzhong supervised the division to go to sea to fight the Japanese invaders, and soon returned to Beijing.
Although Liao Yongzhong had outstanding military achievements, he was not made a duke because he made many mistakes, which annoyed Taizu Zhu Yuanzhang. In the early years, Liao Yongzhong was ordered to go to Chuzhou to welcome Han Lin'er to Yingtian (Nanjing), when the ship went to Guabu, the boat capsized, and Han Lin'er died. Taizu put this blame on Liao Yongzhong. When it was time for the great heroes, Liao Yongzhong asked the Confucian scholars who were more familiar with Zhu Yuanzhang to inquire about Zhu Yuanzhang's intentions and ask Zhu Yuanzhang for the title, which annoyed Zhu Yuanzhang. Later, Yang Xian became the prime minister, Liao Yongzhong was very close to Yang Xian, Yang Xian was killed, and Liao Yongzhong was spared because of his great merit.
In March of the eighth year of Hongwu (1375), Liao Yongzhong was given death by Taizu at the age of 53 because he used something with a dragon and phoenix pattern that should not be used, plus some other illegal things.