雖然意向性理論是瑟爾心靈哲學的代表理論，但是瑟爾認為對心靈的探究不應該停在對意向性的討論。在意向性理論中，為了對於個別心靈狀態的獨特性有所解釋，瑟爾穿透了意向性而提出「背景」的概念。在他論述「背景」概念的發展過程中，曾經為了避免一些問題而做出一次關鍵的修正。修正的基礎便是更動其在意向性理論之中所主張的心靈中具有有意識和無意識的狀態，更動之處便在於他放棄了此部分即心靈中具有無意識的心靈狀態這項主張。這表示，當瑟爾要為「背景」概念的內容提出更完備的主張時，同時也必須將意向性理論的主張做一番檢討與修正。這不僅僅顯示「背景」概念是為意向性理論的一個重要部分，更佐證了「背景」概念作為根源地決定意向性的因素。 除了瑟爾所察覺到的問題之外，「背景」這個概念也曾遭遇哲學家方萬全、史陶德和索沙的批評。本文的目的，在於探究「背景」是否經得起以上種種思想激盪的考驗，並且探討「背景」理論在修改前後，是否還存在著瑟爾所未慮及的問題。因此，本文將分為四部分：在第一部份之中，我將先交代瑟爾的意向性理論。接著，我將會探討意向性與「背景」概念的關係，而這部分也包括了展示瑟爾在不同時期所主張的「背景」概念。之後，我將會討論，方萬全、史陶德、索沙等人認為瑟爾的「背景」概念存在著的一些問題。最後，我將會針對瑟爾的一些主張提出質疑，並且基於這些質疑，重新思考「背景」這個概念。 Despite the theory of intentionality is the representative theory proposed by Searle in the philosophy of mind, he still thought that the investigation on mind should not come to a halt with the discussion of intentionality. In the theory, Searle has penetrated intentionality and proposed the idea of “the Background” to explain the uniqueness of individual mental states. In the process which he expounded the development of the Background, there has been a crucial modification which is made to avoid some problems. The foundation of this modification is changing his opinion about the conscious and unconscious mental states, and what he had changed is he abandoned the idea that there are unconscious mental states in mind. That means, when Searle wanted to give a more complete claim about the Background, he had to inspect and modify his theory of intentionality as well. This relation between intentionality and the Background does not only show that the Background is an essential part in the theory, but manifests the evidence that the Background is an originally determinative factor to intentionality. In addition to the problems that Searle had become aware of, the idea of the Background has also encountered the challenges proposed by philosophers including Wan-chuan Fan, Barry Stroud, and David Sosa. The purpose of this thesis is to see if the Background could bear the trials above, and to see if there are other problems that Searle has not considered before and after the theory of the Background was modified by himself. Hence, this thesis should be divided into four parts: Firstly, I will give an account of Searle’s theory of intentionality. After that, I will discuss the relation between intentionality and the Background. Besides, the exhibitions of the Background in different period will also be included in this part. Moreover, I will discuss the difficulties of the Background proposed by the philosophers mentioned above. Finally, I will try to bring up some suspicions about Searle’s view concerning the Background. And base on these suspicions, I will reconsider the ideas related to the Background.