作为孔子后学的重要一支，子思学派在先秦儒学发展史中具有重要地位。近代以来，由于相关文献资料的缺乏，加之受清代以后疑古思潮的影响，对子思学派思想的研究无法系统展开。湖北郭店楚墓竹简的出土，为子思学派思想研究提供了新的文本依据和思想材料。本文结合新出土竹简与传世文献，对子思学派思想进行了比较系统的研究。其一、本文首先对子思学派及其著述的基本情况做了考证和说明。子思是孔子嫡孙，是子思学派的创建者。子思继承孔子及孔子弟子的思想，创立了子思学派的思想体系。《中庸》是子思学派的核心文献，郭店楚墓儒家类竹简为子思作《中庸》说提供了新的考古证据。子思学派文献在流传过程中大多亡佚，新出土的郭店儒简基本上属于子思学派，构成子思学派著述的主体部分。其二、本文对子思学派核心文献——《中庸》的性与天道思想进行了论述。《中庸》代表了子思的成熟思想，其以“诚”为核心概念，构建了一个性与天道的理论体系。道论、性命论的构建，为人性和人道提供了形上根据和价值本原，揭示了人通过德性修养上达天德的可能性与必要性。子思把“中庸”的原则贯彻于德性修养之中，以忠恕行仁之道为德性修养的基本方法，由成己以至于成物，实现人我、物我之合，为天人合德提供了具体途径和原则方法。《中庸》所构建的性与天道理论体系是子思学派思想的核心内容。其三、本文论述了传世文献中所见的子思学派的政治思想。郭店楚简有《缁衣》一篇，相比于今本《礼记•缁衣》，更重视政治治理的德化原则，更符合子思学派思想原貌。《缁衣》、《坊记》、《表记》以及《中庸》的一部分以“子曰”的形式在传述孔子思想的同时表达了子思学派的思想。在对《缁衣》考察的基础上，本文论述了《缁衣》、《坊记》、《表记》以及《中庸》所构建的以教化为根本原则，以德礼为主要施政方式的伦理政治思想。其四、本文通过对郭店儒简的思想的探讨，对子思学派思想进行了拓展性的研究。从郭店儒简的性与天道思想与德化政治观来看，郭店儒简与《中庸》、《缁衣》、《表记》、《坊记》的思想理论有内在的关联，同属于子思学派的著述。探讨了郭店儒简的五行说、天命观、性情论、政治论等方面的理论内容，在此基础上，对郭店儒简在子思学派思想的形成和发展过程中的地位和作用进行了说明：从理论发展来看，大部分郭店儒简文献为《中庸》提供了理论基础和直接的思想来源，一些文献则是对《中庸》思想的发展，表现出子思后学的理论特色。最后，本文总结《中庸》等篇与郭店儒简的思想，指出子思学派思想以天人合德为理论主旨，以“诚”为核心概念，表现出“合外内”的总体特征。

The ideology of the Zi Si School is an important link in the development of the Confucianism from Confucius to Mencius. Bamboo slips unearthed in Chu Tomb in Guodian provide the new materials for the study of the ideology of Zi Si i School.Zi Si is the founder of the Zi Si School. His ideas are mainly derived from Confucius and his disciples. The Golden Mean is the kernel document of the Zi Si School. Bamboo slips unearthed in Chu Tomb provide the new evidence that the Golden Mean，was written by Zi Si. The Golden Mean proposes the theoretical system of humanity and heaven principles which centers on“sincerity”. The Golden Mean provides the philosophical bases and the value principles for humanity by the ideas of heaven doctrine and heaven’s will. The process of virtue cultivation by practicing humanity makes others-egos, nature-egos and heaven-egos connected with each other by extending the egos to nature. The complete system of humanity and heaven principles in the Golden Mean is the core content of the ideology of the Zi Si School.One text of Ziyi in bamboo slips unearthed in Guodian is equal to Book of Rites•Ziyi left now. This text attaches more importance to morals preach in political administration. This is in more conformity with the original ideas of the Zi Si School. By using “it is said by Confucius”, Ziyi, Fangji, Biaoji and some part of the Golden Mean spread the ideas of Confucius and convey the ideas of the Zi Si School as well. These texts express the cardinal principle of enlightenment and the ideas of morals administration by practicing virtues and rituals as a main way of administrative politics Humanity and heaven principles , morals preach in political administration expressed in the bamboo slips unearthed in Guodian belong to the ideas of the Zi Si School, as well as those ideas in the Golden Mean, Ziyi, Biaoji and Fangji. Theoretically, the Confucian bamboo slips in Guodian provide the theoretical bases and sources of ideology for the Golden Mean. Some of the documents reveal the theoretical ideas of Zi Si’s disciples. Synthesizing the Golden Mean and its relevant texts with the Confucian bamboo slips, the Zi Si School is centered on the theory of heaven-human unification and symbolized by sincerity and characterized by inner-outer world unification.