This study has sorted and analyzed the ritual activities described in Hong Mai's Yi Jian Zhi and aims to understand its related functions and development during the period of the South Song Dynasty.Firstly, Buddhist and Taoist ritual activities were sorted out and their main functions analyzed. It included extending the length of life, appreciation of rebirth, fighting against the demons, apologizing for having done something wrong, praying for blessings, praying for rain, asking for release of the soul, etc. The scope of ritual activities was extremely extensive. It consists of all kinds of issues that relate to birth, aging, illness and death. The religious concerns have been entirely developed.Secondly, the study focused on the release of the soul and ritual activities; these were divided into four categories derived from Yi Jian Zhi. Due to various situations, there were funeral affairs, soul release, compensation to the soul that was treated unjustly and a deceased person's soul departing from the human world. An analysis was carried out from all possible viewpoints.Thirdly, the researcher recognized that the ”Huang Lu Jiao” were the most popular rites in the Taoist ritual activities and the ”Shui Lu Zhai” for Buddhists.Finally, various aspects of those rich ritual activities in the South Song Dynasty were compared. It generated a kind of argument between emotions and reason. However, it reflects the prosperity of the soul release and ritual activities in the South Song Dynasty.