President Reagan yesterday dismissed assertions that Judge Robert H. Bork's Supreme Court nomination is dead and vowed to keep fighting.

Reagan, speaking with reporters upon his return from a weekend at Camp David, was asked whether the embattled nomination is finished.

"No," he replied.

Asked whether he is considering withdrawing Bork's name from consideration, Reagan said, "I'm going to continue with his nomination."

Asked then about his policies involving Central America, Reagan quipped, "I'm fighting another war," adding later, "Bork."

As Reagan returned to Washington, spokesman Marlin Fitzwater said the White House is planning to crank up its campaign for Bork.

Fitzwater said the White House has a full week of activities on tap to keep the nomination in the forefront of the president's schedule. Fitzwater declined to be specific, saying only, "You'll see something every day."

Sen. Orrin G. Hatch (R-Utah) said yesterday that Reagan intends to press for a full Senate vote on Bork even if the Senate Judiciary Committee fails to recommend confirmation in its scheduled Tuesday vote.

Hatch, an early Bork supporter, also said Reagan will not withdraw the selection even if an overwhelming number of senators state their opposition.

"The president has authorized me to say on this program . . . that he's going to press through to conclusion, to a vote on the Senate floor," Hatch said on NBC News' "Meet the Press."

Sen. Howell Heflin (D-Ala.), an undecided member of the Judiciary Committee, said he will take a stand on Tuesday.

"I think the issue comes down {to}: Is he a conservative? Will he be a jurist that will not believe in judicial activism?" Heflin said on the same program.

"On the other hand, is he an extremist that has in the back recesses of his mind a real radical right-wing agenda that he would like to see the court follow during the next several decades?" he asked.

Heflin, a conservative southern Democrat, said he is in a no-win situation.

"It's what you might call a plank-walker," he said. "You walk to the end of the plank to take off your blindfold, and you see a bunch of barracudas on one side and swarming sharks on the other . . . .

"You go on to decide that your vote should be on what's best for the United States of America and what's best for the Supreme Court," he said.

Meanwhile, Sen. Thomas A. Daschle (D-S.D.), in remarks prepared for delivery on the floor Tuesday, said he will vote against the nomination, the 28th senator to announce opposition to Bork.