FCI-Standard N° 260 / 09.12.1997 / GB

ORIGIN : Japan.


UTILIZATION : Formerly fighting dog, nowadays watchdog.

FCI CLASSIFICATION : Group 2            Pinscher and Schnauzer- Molossoid breeds – Swiss Mountain and Cattle Dogs and other breeds.   
                                           Section 2.1        Molossoid breeds,
                                                                  Mastiff type.
                                           Without working trial.


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BRIEF HISTORICAL SUMMARY :  Japan has a long  history of dog fighting, beginning in the 14th century.  With such a history in the background, this breed was produced as a hybrid of Shikoku-ken and Western breeds.   Named after the  area where they were  bred, these dogs are  sometimes called "Japanese Mastiffs".  The Western  dogs used  for creating  the breed were Bulldogs  (1872), Mastiffs (1874), German Pointers (1876) and Great Danes (1924), all of which were used to  improve the breed by sequential mating.  According to some  accounts, St.Bernards and  Bull Terriers were also  involved, but it  is  not  known in  what  years  they were  used.   The  Tosa's established features  of stamina  and the fighting instinct  typically found in Mastiffs may be attributed to the involvement of such breeds.

GENERAL APPEARANCE : Large-sized  dog with a stately manner and robust build.   The dog  has hanging  ears, short  hair, a square muzzle  and hanging tail thick at the root.

BEHAVIOUR/TEMPERAMENT  :  The  temperament   is  marked  by  patience, composure, boldness and courage.


Skull : Broad.
Stop : Rather abrupt.

Nose : Large and black.
Muzzle : Moderately long. Nasal bridge staight.
Jaws : Upper and lower jaws strong.
Teeth : Strong with a scissor bite.
Eyes : Rather small, dark brown in colour with a dignified expression.
Ears :  Relatively small,  rather thin, set  high on the skull  sides,
hanging close to the cheeks.

NECK : Muscular, with a dewlap.

Withers : High.
Back : Level and straight.
Loins : Broad, muscular.
Croup : Slightly arched at the top.
Chest : Broad and deep, ribs moderately sprung.
Belly : Well drawn up.

TAIL : Thick at the root, tapering towards the tip, reaching the hocks
when let down.


Shoulder : Moderately sloping.
Forearm : Straight, moderately long and strong.
Pastern : Slightly inclining and robust.
Muscles  very  developed.    Joints  of  stifle  and  hock  moderately
angulated, strong.

FEET :  Tightly  closed.   Pads  thick and  elastic.   Nails hard  and preferably dark in colour.

GAIT : Robust and powerful.


HAIR : Short, hard and dense.

COLOUR : Red, fawn, apricot, black, brindle.  Slight white markings on chest and feet are permitted.

SIZE : Minimum height at withers for dogs     60 cm
                                                    for bitches  55 cm.

FAULTS : Any departure  from the foregoing points should be considered as a fault and the seriousness with which the fault should be regarded should be in exact proportion to its degree.

  • Thin bone.
  • Snipy muzzle.
  • Slightly overshot or undershot bite.


  • Aggresive or overly shy.
  • Extremely overshot or undershot bite.
  • Shyness.

Any dog clearly showing physical or behavioural abnormalities shall be disqualified.

N.B. : Male animals  should have two apparently normal testicles fully descended into the scrotum.

Automatic translate from

Tosa Inu known devout commonly with the name of   Japanese dog from combat. Tosa-Ken, Shears Inu or Tosa-Token, original dellisola of Shikoku in the Prefettura of the Kochi. Express studied for the combats in said arena to be the product selective delbreeders of the dog of Kochi with the best ones breeds imported   dallOccidente between which Bulldog (1872), Mastiff (1874), the Bull Terrier (given disowned), the German Hound (1876) and Great Danish (1924). This has joined   ransoms and the force of the western dogs with the courage, the lealt and labilit of fight of the Japanese dogs. Tosa a massive and athletic dog with one amazing agilit although its powerful conformation. It exists in various tonalit of color even if mainly preferred that one having the red cape. The males succeed in to weigh 60 70 kg even if seem much devout large for their muscular constitution much solid one. Landladies are protect to you in the comparisons of theirs and are famous for their patience and devozione towards theirs famiglia.Il Tosa not a dog that easy adapted to the cohabitation with other dogs: therefore sconsigliabile to acquire of one if gi in possession of a dog. And preferibile that the owner of Tosa has gi experience of other dogs of great ransom. They are considers you of the optimal companions of game for the children.  


Ransom at least 60 cm for i males 56 cm for the females

Tosa, also called Tosa-Inu or Tosa-Ken, a majestic and powerful dog. Athletic and amazingly agile. Its large head with a wide skull, one stop abrupt and obvious and a snout moderately along and squared.

The jaws are much powerful. The skin the neck forms one giogaia. The orecchie are enough small and falling along cheeks. The eyes are small, dark and to shape of almond with austera unespressione. The tail much long and enough thick part to the root, streamlining themselves as arrive to the end   (until the garretto). The driven in and hard hair. The black, yellow preferred color red but also in, the black one and brown rossiccio, fulvo clearly streaked admitted.


It shears a brave and audacious dog. Careful to the tone of voice with which its landladies give the orders to it, a dog much obedient one. Protecting and sweet. Exceptionally calm, calm and patient. Tosa raised in order to be a dog the many calm in how much rules of the Japanese combats between dogs impose one silent fight. They are much intelligent and they do not need of a repetitive training but it must porsi they in friendly way and with costanza. It is become attached very to all the members of its classified family and with the disowned ones that however accetter without problems if be very socialized. (if be properly introduced). It puts in Association of Bologna the family but the hosts gi known to receive them happily and warmly. He is the males who the females proteggono and hold company to the members of the family and their malintenzionati strong and fearless aspect a good deterrent against. Tosa extension an extraordinary sympathy in the comparisons of the children and not to bite for the fear or the pain that potr to try during the game moments. However well that there is an adult in the vicinities while the dog and the child play. The master must learn to manage just Shears poich the too much great race in order to leave it free.   bond with the other domestic dogs and animals if only grown since small with they.   They stretch to being enough aggressive dogs. To far away hold Tosa from other dogs that demonstrate themselves aggressive and that they wish to fight in how much sure to win. They are not advises to you in a house with other dogs of the same sex and with the same temperament in how much sure they will meet and Tosa avr the better one on its concubino.   They have unelevata resistance to the pain, due to its ancient origins of dog from combat. This race demands a strong owner and with able experience of dealing with a large and powerful animal. With an appropriate training Tosa pu to be a good companion for the members of the family. And a good dog from guard and protection. adviced against for who to the first crews with the canine world!


Weight: 37 Kg 90 Kg

Immense variet of weight and the height in the race of Tosa due to its preparation for the combats between dogs. They are subdivided for category: light, medium and the maximum weight.

Problems of health:

And incline to fatten To inquire itself if the stirpe from which it comes down yours Shears had members who stretched to fatten in how much this a problem not to underrate for a powerful and large dog cos.

Living conditions:

Tosa star well also in an apartment on condition that make various attivit motoria allaperto during the day. And enough inactive allinterno and one short race the giover in health. If closed in a sure unfortunate fencing sar in how much devout of every one other thing, it close wishes to be to the members of the family.


In one enough great recintata earth area, Tosa imparer to answer to the commandos of just the landladies, if constantly exercised. This race does not need of exercised a hard exercise and massacring but devout verr devout godr also in health. And sure a good companion in order to make jogging!


10-12 life years


Tosa easy to hold. All that one of which it needs of one beautiful and vigorous brushed occasional in order to remove the dead hair: cos avr sure a beautiful clean and cured cape.

. Origini:

Tosa often came reputato like the lottatore of Sumo in the world of the dogs. Raised for hundred of years in Japan. Developed between 1868 and 1912 through the crossings of the Kochi (one Japanese local race)   and the original dogs from fight of the Shikoku. Tosa that we recognize today be developed towards the 1800 end. The improvement of had Japanese Tosa through the crossings with the European new breeds the Danish imported between which,   the Mastiff, the Bull dog, the Bull Terrier and the Saint Bernardo, in order to increase its ransom. The result be a dog of the type mastiff, powerful, agile and athletic. In Japan considered Tosa a national treasure. Even if hour the combats between dogs are illegal in Europe, North America and Japan, in secret the combats continue in a remote and rural zone of devout Japan where it comes used small Tosa (30-40Kg) in order to fight. Tosa a rare race also in its Country dorigine and many Countries illegal in how much comes considered one dangerous race. And a dog that becomes attached particularly the family if very socialized and integrated correctly and seen its powerful size turns out to be an optimal dog from defense and guard.

Group:  2  section molossoidi