Liu Deren, the founder of the True Great Daoism, was born in 1122 in Cangzhou, Hebei. At the age of six, he encountered the Jingkang Rebellion and later moved to Taipingshan, Yanshan. He learned the “Dao De” teachings of Laojun, who also taught him to spread this teaching “to cultivate oneself and to transform others.” In the second year of the Jin Huangtong period [1142], founded the True Great Daoism. The main teachings of the religion are: 1. Treat others as you would like to be treated; do not nurture the heart of harming and anger; 2. Be loyal to the king, filial to your parents, and sincere to others; do not speak in a flattering manner, and do not speak evil words; 3. Eliminate evil and immorality, and maintain purity and tranquility; 4. Stay away from power and influence, be content with being poor and humble, work hard and eat, and live within one's means; fifth, do not gamble, and do not steal; sixth, do not drink alcohol or eat meat, and be content with what you have; seventh, be humble and weak-minded, and be modest and humble; eighth, do not rely on strength, but be modest and humble; ninth, be content and not be humiliated, and know when to stop and not be in danger. Scholars should keep these in mind. In the early years of the Jin Dynasty, he was ordered to live in the Tianchang Temple in the capital and was given the title of Dongyue Zhenren. The True Daoist religion reveres Liu Deren as the first generation, which was passed down from generation to generation. The second generation was Chen Shizheng, the third generation was Zhang Xinzhen, the fourth generation was Mao Xicong, and the fifth generation was Li Xicheng. He was deeply trusted by Emperor Xuanzong of the Yuan Dynasty, and made the True Daoism, which had been spread invisibly among the common people, become public and gradually move towards the upper class. Especially, he lived in Tianbao Palace in Yancheng, had close contact with Emperor Xuanzong, and developed the True Daoism, which made it popular in the world. After Li Xicheng died, the sixth generation Sun Defu was passed on. Sun Defu was also appreciated by Emperor Shizu, and was once awarded a bronze seal, and later a silver seal. After Sun Defu died, the seventh generation Li Dehe succeeded him, and Li Dehe was succeeded by the eighth generation Yue Dewen, who was succeeded by the ninth generation Zhang Qingzhi. The True Way of the Dao was practiced for 38 years and lived for 59 years. Its teachings emphasized hardship and danger, and it did not take from others without good reason or be extravagant with itself. He taught people to be simple and honest, to think less and desire less, to be modest and sincere, and to guard the qi and nourish the spirit. The content is roughly similar to that of Quanzhen Taoism. After the Yuan Dynasty, it gradually declined and was mostly subsumed into Quanzhen Taoism.

  真大道教创立者刘德仁,生于宋宣和四年[1122]，河北沧州乐陵人，六岁时遇靖康之乱，后迁居盐山太平山，得老君“道德”之要，老君又教他传播此教“可以修身，可以化人”，他于金皇统二年[1142]创立真大道教，其教主要教规教义有：一为视物亚犹己,勿萌戕害凶嗔之心;二为忠于君,孝于亲,诚于人;辞无绮语,口无恶声;三为除邪淫,守清静;四为远势力,安贱贫,力耕而食,量入为用;五为毋事博奕,毋习盗窃;六为毋饮酒茹荤,衣食取足毋为骄盈;七为虚心而弱志,和光而同尘;八为毋恃强梁,谦尊而光;九为知足不辱,知止不殆学者宜世守之.金大定初,诏居京城天长观,赐号东岳真人。真大道教尊刘德仁为第一代，代代相传，第二代为陈师正，第三代为张信真，第四代为毛希琮，第五代为郦希诚。他深受元宪宗宠信，使真大道由民间隐形传播一度成为公开传播，并逐步走向上层领域，特别是他自居燕城天宝宫，与宪宗交往密切，发展真大道教，使真大道教盛行于世。郦希诚死后，传第六代孙德福，孙德福亦受世祖赏识，曾锡以铜印，后又赐以银印。孙德福死后，传第七代李德和，李德和后传第八代岳德文，岳德文之后传第九代张清志，世代相传为九祖。真大道教行教三十八年，住世五十九载，其教以苦节危行为要，而不妄取于人，不苟侈于己。而教人见素抱朴，少思寡欲，虚心实腹，守炁养神为要。其内容大致与全真道相近。元以后逐渐衰落,大都归入全真道。