Candrakīrti’s writings are not found in the Chinese editions of the Buddhist Tripitaka, and the Prāsaṅgika Madhyamaka Theory is almost nowhere to be seen in the CBETA digital version of the Chinese Tripitaka , with the exception of part of Master Tsongkhapa’s scriptures, which were translated by Venerable Fazun. Besides, Candrakīrti’s Madhyamakāvatāra was also translated by Venerable Fazun, although his Prasannapadā had already been translated into Chinese, but the currently available Chinese translations are still difficult to read and understand. Given that this is the case, I attempt to describe and translate it from the Prasannapadā XXIV “Investigation of the Truth” in order to make its reading easier and clearer. I have selected the first Dalai Lama dGe ''dun grub pa’s outline of the Mūlamadhyamakakārīkā to use in my translation, and hope that my efforts will benefit those who would like to learn Prāsaṅgika Madhyamaka Theory. Concerning the research component of my thesis, at first, I analyze the subject of all the poems of the Prasannapadā XXIV, and then try to clarify the connections between the poems by Candrakīrti’s descriptions. In Chapter Two, I deal with the comparison of two topics, the first part is a comparison of the commentarial style of two Prāsaṅgika masters who have explained the Mūlamadhyamakakārīkā. The second part is a comparison between the Prasannapadā and the Madhyamakāvatāra of Candrakīrti to see if there are any differences or connections between them. In Chapter Three, I try to analyze three terms in the Prasannapadā XXIV, namely, stong pa, rang bzhin and dngos po, and to see if they possess different meanings when they appear in different contexts. In Chapters Four to Six, I try to analyze the topics, which are determining the orthodox concept of Emptiness, and establishing the ideals of the two truths and Dependent Arising, and thereby to investigate the necessity of understanding the three meanings of Emptiness and the difference between the two truths. And finally, to investigate the differences between Emptiness and the Inherent Existence of Emptiness.