朱熹理学被尊为元代理学的正统。因此元代很多关于“四书学”或者“四书类”典籍,往往也是以朱注《四书》作为对象的。其中研究《孟子》的著作中,有很大的一部分是属于对于朱注《孟子》的诠释和补充,并且由南宋到元代,具有很大的继承性。从学术史来看,朱子理学在元代大体沿三条线发展:其一,以许衡为代表的赵复一线。赵复自谓是朱熹的私淑弟子,经他的传授,北方有了一批有影响的理学人物,如许衡、郝经、刘因等。其二,以吴澄为代表的 Zhu Xi Neo-Confucianism was honored as orthodox Neo-Confucianism. Therefore, many of the Yuan Dynasty books on “Four Books” or “Four Books” are often targeted by Zhu’s “Four Books.” Among them, a large part of the works on the study of Mencius belongs to the interpretation and supplement of Zhu Men’s “Mencius”, and it has a great inheritance from the Southern Song Dynasty to the Yuan Dynasty. From the academic history point of view, Zhuzi Neo-Confucianism developed along three lines in the Yuan Dynasty: First, the Zhao Fu line, represented by Xu Heng. Zhao Fu said he was a selfless Shu disciple, by his teachings, the North has a number of influential Neo-Confucianism, such as Xu, Hao, Liu and so on. Second, represented by Wu Cheng