Egyptian President Anwar Sadat's original plan for crashing "the psychological barrier" between Egypt and Israel was even more mind-boggling than his dramatic visit to Jerusalem last month.

It was an improbable super-summit in Jerusalem of leaders of the United States, Soviet Unions, China, Britain and France, as Sadat has disclosed it.

Egyptian sources acknowledge that Sadat made an alternative proposal, which the United States "poured cold water on." President Carter, without identifying what Sadat suggested, or his own reaction, has said Sadat "made a proposal" that was "a precursor" of his trip to Jerusalem.

Sadat made the following disclosure in a portion of an interview with ABC-TV "Issues and Answers" which was omitted from a broadcast on Nov. 27 but was subsequently reported by Cairo's Middle East News Agency:

". . . My first initiative - about which no one knows anything - was that I intended to call the five big states, that is President Carter, Brezhnev [Soviet Union], Giscard d'Estaing [France], Callaghan [Britain] and Hua Kuo-feng [China], to go to Jerusalem for only one or two days and to sit down with the parties concerned.

"I also thought of the [Arab] confrontation states but I knew that most of them would not go. But I intended to invite them to Jerusalem [anyway] so that all the confrontation states, including Israel, would sit down with the five big states to draft . . . a paper for our guidance in order to go to Geneva and that this paper would be drafted in one or two days, because the heads of state cannot begin to negotiate from A to Z.

"We would then immediately proceed to Geneva and sit down having with us this paper on which we would have agreed among ourselves together with Israel and the five big states. We would then begin in Geneva and lay down this peace agreement or peace treaty.

"But I came to the conclusion that they were all heads of state and I could not be certain that they would all come," Sadat said and he decided that such a meeting "would not pull down the psychological barrier existing between me and Israel.

"Therefore, I preferred the second idea which required that I go personally, pray in the Al-Aqsa Mosque and make a speech to the Knesset . . ."