The Sun has been the subject of a boycott on Merseyside since 1989, following its disreputable coverage of the Hillsborough disaster. However, until now, the restrictive access was limited solely to exclusive interviews rather than open media events.
Previously, reporters have attended Anfield games and been allowed to attend press conferences alongside broadcast and print media.
The Sun's role in assisting a cover-up by South Yorkshire Police was documented during the fresh inquests and the false allegations printed under its most notorious headline "The Truth" four days after the disaster prompted renewed calls for an outright ban.
Liverpool is making no comment, beyond confirming their new policy.
In a statement, a Sun spokesperson said: "The Sun and Liverpool FC have had a solid working relationship for the 28 years since the Hillsborough tragedy. Banning journalists from a club is bad for fans and bad for football. The Sun can reassure readers this won't affect our full football coverage.
"The Sun deeply regrets its reporting of the tragic events at Hillsborough and understands the damage caused by those reports is still felt by many in the city. A new generation of journalists on the paper congratulates the families on the hard-fought victory they have achieved through the inquest.
"It is to their credit that the truth has emerged and whilst we can't undo the damage done, we would like to further a dialogue with the city and to show that the paper has respect for the people of Liverpool."