The Grand Han Righteous Army (大漢義軍) was a collaborationist Chinese army cooperating with the Empire of Japan in campaigns in northern China and Inner Mongolia immediately prior to the official start of hostilities of the Second Sino-Japanese War.

He managed to recruit approximately 6,000 men, who were trained by the Japanese and organized into four infantry brigades in Japanese-occupied northern Chahar.

The troops were armed with weapons seized from Northeastern Army armories and warehouses in northern China.

The Japanese transported Wang and his Grand Han Righteous Army by trucks into a location near Pai-ling-miao and launched a counterattack, which failed dismally on 19 December.

With the bulk of its men captured or killed, the Grand Han Righteous Army ceased to exist as an effective combat force, and the Japanese disbanded the remnants.