After he leaves office, Secretary of State Henry A. Kissinger will set up shop here at Georgetown University, occasionally and have the assistance of two of his top aides who also are going on the university payroll.

Sources said yesterday that under an unusual six-month arrangement, Kissinger will have an office starting March 1 at Georgetown's Center for Strategic and International Studies.

The foreign policy think-tank, at 1800 K St. NW. includes on its regular staff prominent anti-Communist critics of Kissinger's policies, as well as promises supporters.

Kissinger also will also he a visiting professor of diplomacy at Georgetown's School of Forign Service on the main campus.

He will be paid about $15,000 for his six months at Georgetown, the sources said. As secretary of state, he earns $63,000 a year. Kissinger also reportedly has received lucrative offers from publishers for his memoirs.

Two Kissinger staff aides, Peter Rodman and Rosemary Niehuss, are coming with him to Georgetown as research assistants also with six-month appointments at half their government salaries.

The arrangement allows Kissinger to remain in his rented Georgetown home and to stay near his State Department papers, which he is giving to the Library of Congress.

On prominent official of the research center is Ray S. Cline, a former deputy director of the CIA who quit his post as intelligence and research director of the State Department in 1973 because of policy disagreement in 1973 because of policy disagreements with Kissinger. In books and articles since then, he has charged that the international position of the United States is declining and that the benefits of detente with the Soviet Union have been oversold to the American public.

The center's chairman is David Abshire a former assistants secretary of state for congressional relations, who made the arrangements for Kissinger's six-month appointment.

The strategic studies institute started in 1962 as a strongly conservative collection of academics, but in recent years its staff and studies have become much more diverse.

Besides doing his own research and writing Kissinger is expected to take part in two major lectures and take part in one seminar meeting. He will not meet regularly with any students, but the sources said he will talk with some of them "occasionally."