Egyptian President Anwar Sadat yesterday accepted an official invitation from President Carter for resumption at the ministerial level of peace talks with Israel in the United States.

Israel is expected to agree to attend the talks, but the Cabinet of Prime Minister Menachem Begin delayed its decision until Sunday. Israeli officials cautioned, however, against high expectations from such talks, which are likely to be conducted by Egyptian Prime Minister Mustapha Khalil, Israeli Foreign Minister Moshe Dayan and Secretary of State Cyrus Vance.

The negotiations have been stalled since November, and shuttle diplomacy by U.S. special envoy Alfred Atherton last month failed to get them started again. The two sides differ on what the proposed treaty would mean to existing Egyptian defense pacts with Arab states and on whether an accord should be linked to progress toward Palestinian autonomy in the West Bank and Gaza Strip.

In other Middle East developments:

The commander of Israeli-supported Christian forces in southern Lebanon warned that his troops will attack Palestinian guerrillas if they continue to infiltrate the region. Maj. Saad Haddad also said Lebanese authorities in Beirut had cut off his men's pay and threatened to declare the region independent under his command.

Tracer fire, dynamite blasts and machine gun bursts erupted in Beirut as residents celebrated Islamic and Maronite Christian holidays.