The social network has warned it would ban the US President - who was locked out for 12 hours - "permanently" if he breached the site's rules again.
In a social media message, the US President said "I love you" to the protestors before telling them to go home, and repeated false claims about election fraud.
He has since posted a more conciliatory response, and refrained from reiterating the claims.
A Twitter spokesperson has now said: "After the Tweets were removed and the subsequent 12-hour period expired, access to @realDonaldTrump was restored.
"Any future violations of the Twitter Rules, including our Civic Integrity or Violent Threats policies, will result in permanent suspension of the @realDonaldTrump account."
However, Mark Zuckerberg has confirmed Trump's suspension from both Facebook and Instagram will be reviewed after the transition of power to President Elect Joe Biden on January 20.
He wrote: "Over the last several years, we have allowed President Trump to use our platform consistent with our own rules, at times removing content or labeling his posts when they violate our policies.
"We did this because we believe that the public has a right to the broadest possible access to political speech, even controversial speech.
"But the current context is now fundamentally different, involving use of our platform to incite violent insurrection against a democratically elected government.
"We believe the risks of allowing the President to continue to use our service during this period are simply too great.
"Therefore, we are extending the block we have placed on his Facebook and Instagram accounts indefinitely and for at least the next two weeks until the peaceful transition of power is complete."