The Xinhua news agency has reported that by a vote of 65-35, the upper chamber has approved the measure to keep the government funded through December 3, 2021.
The House of Representatives is anticipated to approve the bill later in the same day.
The Senate approval of the provisional funding bill came after days of partisan fight over a debt limit provision, as the Democrats had intended to include a suspension of the debt limitation into the short-term government spending bill, a move opposed by Republicans Senate.
Republican lawmakers argued that Democrats should do that on their own, since they curb both chambers of Congress and the White House, while complaining about a lack of bipartisanship in crafting US President Joe Biden's USD 3.5-trillion spending plan.
The Senate has earlier stated that they would support a "clean" stopgap funding bill to avert a government close down, forcing the Democrats to remove the debt limit provision.
Chuck Schumer who is the Senate Majority Leader has announced on Wednesday evening that an agreement had been reached.