President Carter had ordered Secret Service protection extended for at least another month of former Secretary of State Henry A. Kissinger and to Susan Ford, but he is ending it for former Vice President Rockefeller and his family.

A Secret Service spokesman said Rockeffeler's protection would end soon but he would not pin-point the date for security reasons.

One source said Rockefeller intends to hire private security guards to replace the Secret Service agents. A spokesman for the Rockefeller family could not be reached for comment.

Carter's decision means that Kissinger, who has been vacationing in Puerto Marques, Mexico, since Feb. 8, gets to keep the two dozen or so agents who have been giving him round-the-clock protection while he sleeps late, eats long lunches and sits by a pool reading and writing.

On Jan. 18 Congress approved up to six months of protection for Kissinger, the former President's daughter, and former Treasury Secretary William E. Simon after then President Ford requested it. Simon turned down the offer for protection before he left office.

The White House makes a monthly review to determine if protection is still needed.

Secret Service officials would not say how many agents are detailed to anyone under protection. But Washington Post correspondent Marlise Simons reported from Puerto Marques that Kissinger's detail includes two Secret Service divers armed with anti-shark gear when he goes swimming. Relief teams of eight agents arrive every eight hours, she reported.

Susan Ford's protectors travel the 30 miles she communtes each day from her home in Topeka to the University of Kansas at Lawrence, where she is a student.

Robert Lipshutz, Carter's legal counsel, said no reasons for the President's decisions in the matter would be made public for security reasons.

The President spent a quiet day yesterday. A meeting with several university presidents, a handful of top aides and Health, Education and Welfare Secretary Joseph A. Califano Jr. was the only event on his public schedule.

He spent some time working in the Oval Office and some time with his family, and visited the White House bowling alley, an aide said.

Carter is not known as a bowling fan. Only one President, Richard M. Nixon, made extensive use of the White House facility in the 30 years of its existence.

President Truman, who estimated that he hadn't bowled in 40 years, opened the alley in the West Wing in April, 1947. Truman described the alley as a gift from friends, rolled the first bowling ball there, and then retired from the sport.

President Eisenhower, not a bowler either, had the two lanes removed in 1955 to make room for more office space. They were taken across the street and installed in the basement of what is now the Old Executive Office Building.

President Nixon had a new lane built in 1973 under the steps of the North Portico because a source said, it was "not convenient" for him to go next door to the OEOB.

The only events on Carter's public schedule today are attending Sunday School and church services.