, or San Da, was developed by the Chinese Army in the 1960s. San Da literally translated, "San" means scattered or free and "Da" means "to hit", is a modern Hand to hand combat , self-defense system, and combat sport. It was developed from Chinese Wushu and is composed of quan fa (Kung Fu), qin na, boxing, kickboxing and shuai jiao (Chinese form of wrestling).

San Da, or “free fighting”, is more commonly known to the West as San Shou or even Chinese Kickboxing. San Shou actually differs in a few significant ways. For instance, protective gear in amateur San Shou normally includes a chest protector, which San Da does not utilize, in addition to the standard headgear, gloves and shininstep guards. San Shou is practiced on a slightly elevated stage without ropes called a Lei Tai, as opposed to the standard ring that San Da fighters compete in. Techniques allowed in San Da but NOT in San Shou include the use of knees. Much of what is called San Shou is actually identical to San Da in practice but the more familiar name remains.

As an unarmed self-defense system, San Da includes throws, locks, chokes, kicks, knees and punches. As a sport, San Da is practiced in tournaments and matchups where various techniques from the self-defense form of San Da are not allowed such as elbow hits, chokes and arm locks.

A typical San Da match will contain the throws that make it different from most other combat sports as well as the common use of side kicks and kick catches with takedowns.