朱子哲學之定位，在歷史上與現代學者間，存在著甚大落差，現代學者從義理上對朱子學進行了諸多批判，本文主要便在縷述這些學者之批判內容，此等學者包括：馮友蘭、徐復觀、牟宗三、勞思光、劉述先等先生；至於本文論述條理，乃依價值論、境界論、本體論、心性論、功夫論、與思想架構等六大範疇作說明。分析這些學者批判意見，發現朱子哲學中之每一範疇，都存在著甚多甚大難於克服之困難：朱子與傳統儒家追求的價值可能未完全吻合；朱子可能沒有自覺的體驗聖者境界；朱子對本體之理可能認識不夠清晰；朱子對心性瞭解可能不夠全面；朱子主要的格物窮理功夫可能與成聖不相應；最後朱子的思想論述可能有些紊亂；亦即朱子義理之困難有可能是全面的。然而是否真如現今學者之所論，則尚需再做更深入周密的探究，此非本短文所能竟其功，惟俟之他日再另文探究。

The positioning of Zhuzi’s philosophy has discrepancies among historical and modern scholars. Modern scholars have largely criticized Zhuzi’s philosophy from the principles of Confucianism. This paper organizes the contents of critique by scholars such as Feng You-lan, Hsu Fu-guan, Mou Tzong-san, Lao Si-guang, and Liu Shu-hsian. The discourses of this paper include aspects of values, state of mind, ontology, temperament, practice and thinking structure.The investigation finds that each aspect of Zhuzi’s philosophy contains significant and almost unconquerable obstacles, specifically, the values pursued by Zhuzi and traditional Confucianists do not completely match; Zhuzi may not voluntarily experience the state of saints; Zhuzi has no clear understanding of ontology; Zhuzi has no comprehensive understanding of temperament; Zhuzi’s practice in exploring matters does not correspond to becoming saints; Zhuzi’s discourse of thoughts may be disordered; the difficulties of Zhuzi’s principles of Confucianism may be all-around.However, whether the critiques above are valid should be further studied,and thus, is not covered in this paper. Future researches will aim to discuss the above critiques.