Liu He Ba Fa (six harmonies 'thru' eight methods), (alternately spelled: liu ho pa fa, liou ho ba fah, lyou ho ba fah, liou ho pa fah, lok hop pat fat, and abbreviated as: LHBF,LHPF), is a form of Chinese nei-gong or internal exercise with combat fighting applications. Its' principles are associated with a 'water' exercise method known during, but predating the Song Dynasty (960-1279 n.Ch.); the exercise principles are further associated with a Taoist monk Chen Po (Chen Xi Yi, Chen Hsi-I) and with the Mt. Hua Taoist monistary on Hua Shan in Shensi Province. However, the Liu He Ba Fa exercise-system was probably created during the 20th century by Wu Yi Hui in Shanghai and later in Nanjing. Liu He Ba Fa contains form and principle elements from Ba Gua Zhang, Tai-Chi Chuan and Xing Yi Chuan; all of which were appeared after the Song dynasty; each of these exercises however also have form-principles extending back to an ancestor exercise and a non-exercise theory.
The 'core' exercise is usually taught in 66 forms of two parts, for health or martial purposes. The complete LiuHeBaFa-system, taught in Nanking by Wu YiHui, includes training derived from external-styles reworked to complement the core form.