Since ancient times, Li Shimin's literary martial arts have been praised and praised by people. Academic circles have positively affirmed his great talent and great contribution to the history of China. Li Shimin is an accomplished politician and strategist who played a leading role in the struggle against Sui and Tang Dynasties. The victory of Xuanwumen Revolution of Emperor Taizong objectively played a positive role in the development of social history in the early Tang Dynasty. Emperor Taizong did not discriminate against ethnic minorities. Apart from invading Turkey and using force, he mainly dealt with ethnic issues by soft political means. Proper methods and enlightened policies are conducive to national unity and national unity.