Sky Sports reports.
The 37-year-old midfielder is expected to be unveiled at a media conference on Thursday and will begin training with the club in the next fortnight. Beckham has been without a club since leaving MLS side LA Galaxy in December and has been training with Arsenal.
The former England captain had firm offers from 12 different clubs but has opted for Ligue 1’s big spenders.
Despite recently announcing he was to permanently base his family in London, Beckham always said he would make a decision on his next move – based on “footballing reasons”.
PSG have spent more than £200m in the last 18 months, and are managed by Carlo Ancelotti – who was in charge of AC Milan during Beckham’s loan spell there. They are also still in this season’s Champions League.
Beckham, who made a record 115 outfield appearances for England, was part of the Manchester United side that famously beat Bayern Munich to win the 1999 Champions League.
He left Old Trafford for Real Madrid in 2003, before agreeing his move to LA Galaxy in January 2007 and making his debut for the club in August in that year.
He attracted criticism from some Galaxy fans after agreeing loan moves to AC Milan in 2009 and 2010 which meant missing some of the MLS season.
And he brought an end to his five-and-half-year spell in the United States on 2 December after winning the MLS Cup for the second time.
PSG have been the highest-spending club in Europe in the past year and will officially unveil Beckham as their player in a press conference at 16:00 GMT.