Abstract: As the most important Chinese secret society，Tian Di Hui had a series of joining rite since it was established.The core content of the rite included：Setting altar;Swearing by walking beneath knives;Smearing the blood as a sign of the oath;and dictating finger codes、 poems and secret signs.With the proceeding of the time and enlarging of spreading region，the joining rite gradually became more and more complicated and diversified。 By a sense of symbolic means，Tian Di Hui impelled new comers to depart consciously with their own past and became its members； meantime formed and reinforced its control over its members to keep secrets;and obey action and thought regulations.All of these were extremely effective to integrate this secret society。Furthermore，the institutional joining rite and its symbolic implications are not Tian Di Hui’s own peculiar and isolated social characteristics.In comparing it with its counterpart of Freemason,it is clear that joining rite is universal in cultural anthropological sense.