Jiang Wan is a capable administrator, and he continues Zhuge Liang's domestic policies, leaving the government largely efficient.

He is also known for his tolerance of dissension and his humility.

Not having much military aptitude, however, he had soon abandoned Zhuge Liang's policy of waging war against Wei, and indeed in 241 withdraws most of the troops from the important border city of Hanzhong to Fu County (in present-day Mianyang, Sichuan).

From this point on, Shu is generally in a defensive posture and no longer poses a threat to Wei.

(This is in fact misinterpreted by many Wu officials as a sign that Shu is abandoning the alliance and entering into a treaty with Wei, but is read correctly by Wu's emperor Sun Quan as merely a sign of weakness, not an abandonment of the alliance.)