然rán后hòu,忽hū必bì烈liè大dà举jǔ南nán下xià。在zài南nán下xià攻gōng打dǎ南nán宋sòng时shí,忽hū必bì烈liè听tīng从cóng汉hàn人rén官guān员yuán姚yáo枢shū、刘liú秉bǐng忠zhōng的de劝quàn告gào,严yán禁jìn屠tú杀shā无wú辜gū百bǎi姓xìng,他tā说shuō:“贤xián明míng的de君juná王wáng出chū征zhēng,目mù的de是shì在zài征zhēng服fú敌dí人rén,而ér不bú是shì屠tú杀shā老lǎo百bǎi姓xìng。滥làn杀shā无wú辜gū只zhī会huì伤shāng了le国guó家jiā的de元yuán气qì!”
忽hū必bì烈liè在zài即jí大dà汗hàn位wèi时shí就jiù在zài《即jí位wèi诏zhào》中zhōng宣xuān布bù:“祖zǔ述shù(指zhǐ祖zǔ宗zong的de制zhì度dù)变biàn通tōng,正zhèng在zài今jīn日rì。”这zhè表biǎo明míng,他tā想xiǎng采cǎi用yòng汉hàn法fǎ,建jiàn立lì一yī个gè与yǔ中zhōng原yuán经jīng济jì基jī础chǔ相xiàng适shì应yìng的de中zhōng央yāng政zhèng权quán。1264年nián,忽hū必bì烈liè将jiāng年nián号hào改gǎi为wéi“至zhì元yuán”,并bìng定dìng都dū燕yān京jīng(今jīn北běi京jīng),燕yàn京jīng仍réng为wéi中zhōng都dū。忽hū必bì烈liè在zài中zhōng央yāng设shè中zhōng书shū省shěng,在zài各gè地dì分fèn设shè十shí路lù宣xuān抚fǔ司sī,任rèn用yòng汉hàn族zú读dú书shū人rén负fù责zé;改gǎi变biàn蒙méng古gǔ建jiàn朝cháo以yǐ来lái的de诸zhū侯hóu世shì袭xí制zhì度dù,遵zūn循xún中zhōng原yuán汉hàn族zú的de传chuán统tǒng制zhì度dù,大dà体tǐ奠diàn定dìng了le元yuán朝cháo的de政zhèng治zhì体tǐ制zhì规guī模mó。