Generally speaking, Emperor Wudi's two northern expeditions not only resisted the intrusion of the northern minority regime on the south, but also protected the lives and property of the people in the south and ensured that the economic development in the south of the Yangtze River was not destroyed.

At the same time, the Northern Expedition expanded the territory of the Southern Dynasties, and Liu Song became the largest political power in the territory of the Southern Dynasties. The Northern Expedition also introduced new political forces to the Southern Dynasties and provided conditions for the Southern Dynasties to resist the Northern Wei Dynasty.

Only after the integration of the northern nationalities is completed and the conditions for reunification are ripe will the north and the south be unified.

The contributions made by Emperor Wu of Song in the Northern Expedition were also praised by later historians. Wang Fuzhi said, "Song Wuxing destroyed Murong Chao in the east, Yao Hong in the west, Tuoba Si and Helian Bobo in the cave. Since Liu Yuan started his army, Zu Ti, Yu Yi, Huan Wen and Xie 'an have a history of one hundred years. After that, the second Xiao and Chen showed no feet of soil, but they were immersed in cutting. However, when Yongjia came down, only China was angry with him, only Liu Er. " . Wang Fuzhi's high evaluation has made us have a further understanding of the achievements of Emperor Wu of Song's Northern Expedition.