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Luo Tian-yi, a native of Songcheng, Zhending Road, Yuan Dynasty (now Songcheng County, Hebei Province). He inherited his father's teachings from a young age and was determined to learn about history. In Li Gao's later years (after 1244), he studied medicine from Li for several years and mastered all his skills. After Li Gao's death, Luo compiled and published a number of Li Gao's medical works, which contributed to the spread of "东垣 "Learning" played an important role.

After 1251, he returned to his hometown to practice medicine. He became famous for his good treatment of sores and became the imperial physician of the Yuan Dynasty. The soldiers of the Yuan Dynasty went south. Luo Tian-yi went to war with the army many times. While in the army, he also visited teachers and learned talents to improve his medical skills. In his later years, when he was not doing medical work, he used Neijing theory and DCT>Jiegu and Dongyuan are the sects. I searched widely and learned from others, combined with my own experience, and wrote Weisheng Baojian 2 in 1281. Fourteen volumes.

Luo Tian-yi lived in the late Jin Dynasty and early Yuan Dynasty. His academic thoughts were inherited from Jiegu, taught and received from Dongyuan, and He highlighted the characteristics of the "Yishui School" of zang-fu organ syndrome differentiation, spleen and stomach theory, and the application of medicinal property pharmacology, and became an important physician who connected the past and the future in the formation and development of the Yishui School theory.

Luo's main academic thoughts are reflected in Weisheng Baojian, Luo also wrote Neijing Compilation, Drug Symbols, Experienced Prescriptions, Distinguishing Mysteries in Medical Classics (see Liu YinCollected Works on Meditation) and other books, all lost. The compiled works of Zhang Yuan-su include Jiegu Notes Nan Jing .