The Scout Movement spread to Japan in 1913 soon after it was founded in England in 1907 by Lord Robert Baden-Powell. In 1922 the National Association was organized in Japan, and the organization became a founder-member of the International Conference of the Boy Scout Movement during its inaugural meeting in Paris, France. After short disruption during World War II, the National Association was re-admitted as a full member of International Conference of the Scout Movement in 1950.
The Movement has steadily grown on the social, cultural and traditional soil of our country, and established an eminent place for itself in social education for young people. The National Association is re-named as Scout Association of Japan, and abbreviated as SAJ. SAJ has opened the doors to the girls/female youth in all Sections in 1995.
In 1971, SAJ hosted three major World Scouting events, 13th World Jamboree and 1st World Scout Forum in Shizuoka, and 23rd World Scout Conference in Tokyo.
From 1974, SAJ has continuously invited some 45 Scouts from
Scout Associations in the Asia-Pacific Region every year aiming to provide opportunities to take part in major international events such as Jamborees, Ventures, Agoonorees and Rover Scouting events.
SAJ celebrated its 75th Anniversary of founding of the National Scout Association in 1997 and hosted the 2nd Asia-Pacific Regional Top Leaders' Summit Conference in Gotemba and Tokyo.
In the Scouting commemorative year of 2007, SAJ hosted 22nd Asia-Pacific Regional Scout Conference and ancillary events, 5th APR Scout Youth Forum and Course for Leader Trainers in Tokyo in October.
In recent years, SAJ held several international youth events which include the 15th Nippon Jamboree in Shizuoka in August 2010 and the 10th Nippon Agoonoree in Hyogo in August 2008. Scouts are actively involved in the international understanding and co-operation programmmes by Rover Scouts with the Bangladesh Scouts, Scouts of China, Korea Scout Association and Uganda Scouts Association.