The mixed pairs BC3 boccia event at the 2020 Summer Paralympics will be contested between 2 and 4 September 2021 at the Ariake Gymnastics Centre.

The competition starts with a pools stage, containing 2 pools with 5 teams each, it will be followed to the semifinals where the winners move to the finals to fight for gold and the losers will go to the bronze medal match to fight for bronze.

All team has a male (M) and female (F) athlete.

The pools (or can be known as a group stage) will be played between 2 and 3 September 2021.

The top two players in each pool will qualify to the quarterfinals.