The vote was held after an all-night parliamentary session as lawmakers argued over procedure, just hours before euro zone ministers are due to approve the deal and pave the way for disbursement of aid ahead of a debt payment next week.
Thanks to opposition support, Tsipras easily managed to cross the 151-vote threshold in the 300-seat chamber to pass the bill.
Tsipras will seek a confidence vote after August 20 when a debt repayment to the European Central Bank falls due, a government official said.
Greece’s conservative opposition New Democracy party will not back the government in the vote of confidence.
“New Democracy giving the government a vote of confidence? There is no chance of that,” lawmaker Makis Voridis said.
A senior New Democracy official confirmed the party did not intend to vote in favour of Tsipras’s government if a confidence vote was called.