Bokator is a Khmer martial art that includes weapons, close hand-to-hand combat, and ground techniques. Bokator is one of the earliest Khmer martial art and only younger than the Mon-Khmer martial art of yuthakun khom. Oral tradtion indicates that Bokator or an early form thereof was the close quarter combat system used by the ancient armies of Angkor 1000 years ago.

Bas-relief carvings at the base of the entrance pillars to the Bayon, Jayavarman VII's state temple, depict the various techniques of Bokator. One relief shows two men appearing to grapple, or possibly wrestle, another shows two fighters using their elbows. Both are standard techniques in modern Kun Khmer, or Khmer Boxing. A third depicts a man facing off against a rising cobra and a fourth shows a man fighting a large animal.

Unlike kick boxing, which is a sport fighting art, Bokator was a soldier’s art, designed to be used on the battlefield. It uses a diverse array of elbow and knee strikes, shin kicks, submissions and ground fighting.[2] Bokator practitioners are trained to strike with knees, hands, elbows, feet, shins, and head. Even the shoulders, hip, jaw, and fingers can be used to fight an opponent to submission or death.

When fighting, Bokator practitioners still wear the uniforms of ancient Khmer armies. A krama (scarf) is folded around their waist and blue and red silk cords called sangvar day, are tied around the combatants head and biceps. In the past it is said that the cords were enchanted to increase strength, although now they are just ceremonial.

The krama shows the fighter’s level of expertise. The first grade is white, followed by green, blue, red, brown, and finally black, which has 10 degrees. After completing their initial training, fighters wear a black krama for at least another ten years. To attain the gold krama one must be a true master and must have done something great for Bokator. Becoming a "true master" is most certainly a time-consuming and possibly life-long endeavor: in the unarmed portion of the art alone there are between 8,000 and 10,000 different techniques, only 1,000 of which must be learned to attain the black krama.

The art contains 341 different styles based on the study of life in nature. As examples, there are horse, bird, dragon, eagle, and crane styles, each containing several techniques. Because of its visually similar style, Bokator is often wrongly described as a variant of modern kick boxing. Bokator has many forms based on traditional animal-based styles as well as straight practical fighting techniques. Pradal Serey is a more simplified freestyle fighting system which uses a few of the basic (white krama) punching, elbow, kicking and kneeing techniques and is free from animal styles.