The Canadian government announced yesterday that it "will take a lead" in efforts to move the 1980 Summer Olympics from Moscow and suggested a Canadian site as a possible alternative.

The move was part of a series of measures taken by Prime Minister Joe Clark against the Soviet Union that paralleled President Carter's retaliatory steps over the Soviet invasion of Afghanistan.

Clark, who is campaigning for reelection, said his Cabinet decided to cut off all export credits to Moscow, halt high-technology exports, end the current negotiations on a consular convention, and halt all scheduled high-level visits and cultural exchanges with the Soviet Union.

Reaffirming an earlier decision that Canada would not sell additional grain to the Soviets to make up any shortfall caused by the U.S. grain restrictions, Clark said, "It will not be business as usual with Canada."

Other NATO allies yesterday took their first retaliatory steps against the Soviet Union when the Common Market announced it would no longer pay subsidies on grain shipped to the Soviet Union.

Since Common Market countries have not exported wheat to the Soviet Union in six years, yesterday's announcement largely symbolized soldidarity with the U.S. exports freeze. However, the move will effectively choke future wheat and barley sales to Moscow. The market countries sold 200,000 tons of barley to the Soviet Union last year.

But the nine-nation group seemed unlikely to adopt economic sanctions against the Soviet Union as West European officials stressed their wariness of direct reprisals. Sources said proposals for cuts on agricultural exports, particularly butter, were considered.

Clark's call for a new site for the 1980 Summer Olympics came a day after Vice President Mondale proposed the same thing as a way to punish the Soviets for "an outrageous and indecent act of aggression" in Afghanistan. Mondale said, however, that it was his personal idea rather than the policy of the Carter administration.

The Canadian leader said he conferred yesterday with Montreal Mayor Jean Drapeau in an effort to assess the availability of the city as an alternate site to Moscow. Montreal was the site of the 1976 Summer Olympics.

"The government of Canada questions the appropriateness of holding the Olympic Games in Moscow and will take a lead in discussing alternatives with other nations," Clark said.

Clark stopped short of imposing curbs on 48 Soviet fishing vessels in Canadian waters or terminating repair services for Soviet ships at St. John's, Newfoundland.

Meanwhile, the Italian Communist Party yesterday presented a resolution to the European Parliament condemning the Soviet invasion as "an open violation of the principle of independence and national sovereignty."

The motion, signed by 24 Communist members of parliament including the party's Secretary General Enrico Berlinguer, called for the "gravest censure of the Soviet military intervention." The French Communist party has lined up with Moscow on the issue.

In Tokyo, the Japanese parliament decided to postpone the scheduled visit this month of a Soviet parliamentary delegation to Japan. It was the first concrete Japanese reaction to the Afghan invasion.

Kuwait government spokesman Abdel Aziz Hussein told the Kuwait newspaper Al Qabas that the wealthly oil state would join 11 other nations in agreeing to attend a proposed meeting of Islamic countries to discuss the Soviet invasion of Moslem Afghanistan, according to United Press International.

Other countries that have agreed to attend the foreign ministers meeting in Pakistan Jan. 26 are Saudi Arabia, Oman, Pakistan, Bangladesh, the United Arab Emirates, Lebanon, Morocco, Malaysia, Bahrain, Tunisia and and Sudan.All have condemned the Soviet action.

In Kuala Lumpur, Malaysia, delegates from 17 Moslem nations condemned the "dastardly" Soviet action in Afghanistan. The Southeast Asian and Pacific conference on Islam expressed support for "the Afghan people in their jihad [holy war] against the foreign forces and their stooges."

There were anti-Soviet demonstration in Kuala Lumpur, Bangkok and Jakarta. About 1,000 Moslems burned an effigy of Soviet President Leonid Brezhnev outside the Soviet Embassy in Bangkok.