The Junior Tag League is an annual professional wrestling tag team tournament held by the All Japan Pro Wrestling (AJPW) promotion. The tournament is meant for wrestlers under the weight limit of , who are referred to in Japan as junior heavyweights. In 2013, the tournament was rebranded , following in the footsteps of the Junior League, which had been renamed "Junior Hyper League" the previous year. In 2014, the tournament was again rebranded after the singles Junior League, now taking the name .
The tournament is contested in a single block round-robin format with all teams facing each other once. All matches have a thirty-minute time limit and in case of a time limit draw, both teams are awarded one point, while a win earns a team two points. In case of a draw through a double countout, the match is declared a no contest with neither team being awarded a point. After all teams have faced each other, the top two teams move onto the finals to determine the winner of the tournament. Rankings in the tournament are not determined by head-to-head matches and in the event of more than two teams finishing clear of the other teams, extra matches will be held to determine the finalists. Usually, the winners of the tournament earn themselves a shot at All Japan's secondary tag team championship, the All Asia Tag Team Championship, if not already the reigning champions.
Hikaru Sato holds the record for most Junior Tag League wins with five. Sato and Atsushi Aoki are the only team to have won the tournament more than once, having won it in 2014, 2015 and 2016.
In 1984, All Japan Pro Wrestling held the "International Junior Heavyweight Tag Team League" between August 30 and September 12.
In 2002, All Japan Pro Wrestling held the first "World's Strongest Junior Tag League", a junior heavyweight version of the World's Strongest Tag Determination League. The tournament took place over eleven shows between September 8 and 22. The day after winning the tournament, Jimmy Yang and Kaz Hayashi went on to unsuccessfully challenge Arashi and Nobutaka Araya for the All Asia Tag Team Championship.
After a four-year break, All Japan Pro Wrestling held its first Junior Tag League over nine shows between February 25 and March 10, 2006.
After no Junior Tag League took place in 2007, the tournament returned in early 2008, held over seven shows between March 12 and 23.
The 2009 Junior Tag League took place over eight shows between April 17 and 29.
The 2010 Junior Tag League took place over seven shows between April 18 and May 2.
The 2011 Junior Tag League took place over eight shows between April 17 and 30.
The 2012 Junior Tag League took place over six shows between April 1 and 14. The winners of the tournament, Kaz Hayashi and Shuji Kondo, went on to unsuccessfully challenge Daisuke Sekimoto and Yuji Okabayashi for the All Asia Tag Team Championship on May 27.
In 2013, All Japan Pro Wrestling renamed the Junior Tag League the "Junior Hyper Tag League", following in the footsteps of the singles Junior League, which had been renamed "Junior Hyper League" the previous summer. The tournament was held over six shows between March 30 and April 7, 2013. The winners of the tournament, Atsushi Aoki and Kotaro Suzuki, went on to defeat Koji Kanemoto and Minoru Tanaka for the All Asia Tag Team Championship on April 25.
In 2014, All Japan Pro Wrestling again renamed the tournament the "Jr. Tag Battle of Glory", following in the footsteps of the singles Junior League, which had been renamed "Jr. Battle of Glory" the previous February. The tournament was held over eight shows between October 8 and 22, 2014. The winners of the tournament earned a spot in the 2014 World's Strongest Tag Determination League.
The 2015 Jr. Tag Battle of Glory took place over eight shows between October 12 and 23. ÃÂltimo Dragón and Yoshinobu Kanemaru entered the tournament as the reigning All Asia Tag Team Champions, but relinquished the title after losing to Isami Kodaka and Yuko Miyamoto in their opening match.
The 2016 Jr. Tag Battle of Glory took place over five shows between November 12 and 17.
The 2017 Jr. Tag Battle of Glory took place over five shows between November 3 and 9.
The 2018 Junior Tag League took place over ten shows between August 3 and 25.
The 2019 Junior Tag League took place over eight shows between July 17 and 28. Atsushi Aoki was announced to team with Hikaru Sato, while Yusuke Okada was supposed to team with Akira Francesco. After Aoki was killed in a motorcycle accident on June 3, Okada eventually requested to replace him as Sato's partner which was later granted while Hokuto Omori replaced Okada as Francesco's partner.
The 2020 Jr. Tag Battle of Glory took place on December 27, in a self produced show by Hikaru Sato.
The 2021 Jr. Tag Battle of Glory was a one-day tournament and took place on December 26.
The 2023 Junior Tag League took place over eight shows between April 8 and May 4 alongside Champions carnival 2023
The 2026 Jr. Tag Battle of Glory, held under the name "Zennichi Jr. Tag Team Festival", was held as an eight-team single-elimination tournament across four events between February 15 and March 20.