All Judo techniques fall into one of three categories, and each category is further subdivided. the three categories are:

Nage waza comprise Tachi Waza (standing techniques) and Sutemi Waza (sacrifice techniques).

The action of the hips is important in any tachi waza, but they are further classified as either te waza (hand techniques), koshi waza (hip techniques) or ashi waza (foot or leg techniques), depending on which part of the body plays the central role in executing the technique.

Sutemi Waza are called ma sutemi waza (supine sacrifice techniques) or yoko sutemi waza (side sacrifice techniques). The former involve taking a back-on-the-mat position, the latter a side-on-the-mat position.

Katame Waza comprise osae-komi waza (hold-down techniques), shime waza (strangling techniques) and kansetsu waza (joint techniques). The term ne waza (mat work) is sometimes used in place of katame waza , but it is misleading in that not all katame waza are executed while lying on the mat. some strangleholds and joint locks, for example, can be applied from the standing position. As can be seen from the terminology, in grappling the opponent is held, his joints are locked or his limbs bent or twisted, or he can be strangled.

Atemi Waza are techniques for disabling an assailant by attacking with the fist, the knife edge of the hand, the fingertips, the elbow, the knee, the ball of the foot, the toes, the heel, the forehead or the back of the head. The technique may take the form of striking, punching, chopping, thrusting, jabbing or kicking. they are divided into ude waza (arm strikes), in which vital points are attacked with the hand or arm, and ashi ate (leg strikes), in which the leg or foot becomes the weapon. Both groups of techniques are further subdivided, as shown in the table.

The result of making forceful contact with a vital point can be pain, loss of consciousness, coma, disablement of death. Ate waza are practiced in kata, never in randori.

Tai-Otoshi

Seoi Nage

Kata Guruma

Uki Otoshi

Sumi Otoshi

etc.

Uki-Goshi

Harai -Goshi

Tsurikomi-Goshi

Hane-Goshi

Ogoshi

Ushiro-Goshi

Utsuri-Goshi

etc.

Hiza-Guruma

Ouchi-Gari

Osoto-Gari

Sasae tsurikomi ashi

Harai tsurikomi ashi

Okuri ashi harai

Deashi harai

Kouchi-Gari

Kosoto-Gari

Kosoto-Gake

Ashi-Guruma

Uchi Mata

etc.

Tomoe Nage

Ura Nage

Sumi-Gaeshi

etc.

Uki Waza

Yoko-Gake

Yoko-Guruma

Tani Otoshi

Yoko Wakare

etc.

Hon kesa-gatame

Kuzure kesa-gatame

Kata-gatame

Kami shiho-gatame

Kuzure kami shiho-gatame

Yoko shiho-gatame

Tate shiho-gatame

etc.

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Nami juji-jime

Kata juji-jime

Gyaku juji-jime

Hadaka-jime

Okuri eri-jume

Kata ha-jime

etc.

Ude-garami

Ude hishigi juji gatame

Ude hishigi ude-gatame

Ude hishigi hiza-gatame

Ude hishigi waki-gatame

etc.

Ago oshi

Ryogan tsuki

Suri age

etc.

Tsuki kake (Tsukkake)

Tsukiage (Kachi kake)

Yoko Uchi

etc.

Naname uchi

Kirioroshi

Ushiro-dori

etc.

Ushiro ate

Ushiro-dori

etc.

Ryote-dori

Gyakute-dori

etc.

Keage

Mae-geri

Ryote-dori

etc.

Ushiro-geri

Yoko-geri

Ashi fumi

etc.