Pangai-noon Kung Fu was a style of Southern Chinese Kung Fu that is no longer extant in its original form, but has been recreated from Uechi Ryu Karate, having been the basis for that art. The name Pangai-noon indicates that the art's techniques are half-hard, half-soft.
Shushiwa (Zhou Zi He) or Chou Tsu Ho (1874-1926) was a teacher of the style was in the Fukien province of China during the late 1800s and early 1900s. His best-known student was Kanbun Uechi, an Okinawan who taught the style in Okinawa in nearly the same way he had been taught it, with minor wariations. After his death the style was further expanded by his son and renamed Uechi Ryu Karate in his honor.
Pangai-noon contained at least the three forms Sanchin, Seisan, and Sanseirui (or Sanseiryu). It may have contained a fourth form that Kanbun Uechi did not teach. Uechi Ryu is considered to be based on the Tiger, Dragon and Crane styles of Fukien Kung-Fu (though the stances, body posture, and some techniques resemble Fukien Mantis). Indeed, the forms of Uechi-ryu closely resemble a number of other Fujianese kung-fu styles, including Taizu Quan and Fujian White Crane. There is an emphasis on an index-knuckle punch called a Shoken Tsuki and the spearhand called a Nukite, and an unusual big toe front kick that focuses the power to a very small area (called Sokusen).
The art began to be recreated from Uechi Ryu by the 1980s by splinter groups from Uechi Ryu organizations that are attempting to differentiate themselves from that style or to reclaim the origins of the system. The best-known is Shohei-ryu. All teach a modified version of Uechi Ryu, typically discarding the five forms added after Kanbun Uechi's death. These styles may be termed "Pangai-noon Karate", most closely associated with the organization of Shinyu Gushi, or "Pangai-noon Kung Fu". Pronunciation of the Chinese terms may also be rendered as Pwang Gai Noon Ryu in Okinawan, or in Japanese as Han Ko Nan Ryu. No school of original Pangai-noon Kung Fu is known to still exist.
It is disputed whether there was actually a Chinese style of martial art that was called "Pangai-noon" by its practitioners. Some older teachers of Uechi Ryu on Okinawa have said that their teacher Kanbun Uechi referred to the art as Nan Pa Toro Ken (South Group Mantis Fist). The term may be a corruption of a phrase used to characterize the style as "half-hard, half-soft".