On 2006, the publication of The Tiansheng Decrees reveals a new page of the research on the Chinese legal history. Although The Tiansheng Decrees has been thoroughly research, there still need to discuss. In this research the author point out two opinions about the Tiansheng Decrees of Arrest and Fight. First is about reinstate the Tang Codes, author provides few opinions regarding proofread of the text and arrange the order of articles. Furthermore, the Tiansheng Decrees was based on the Kaiyuan Decrees which declared in 737 this is different opinion from other scholars who believe the Tiansheng Decrees was based on the Kaiyuan Decrees declared in 719. Second, in the Tiansheng Decrees, no matter revised or abolish the Tang Decrees these were based on differences between the Tang and Song dynasties. It reflects the problem of the period of Innovation in Tang and Song Dynasties and should pay more attentions for and is the core value of the Tiansheng Decrees.
