The Communist Party leadership Tuesday submitted to the Central Committee a draft resolution allowing the banned Solidarity union to operate again and recognizing a limited form of opposition to the government, party sources said.

The draft, reached during all-night negotiations by the 17-member policy-making Politburo headed by Gen. Wojciech Jaruzelski, was submitted to the 200-member Central Committee and expected to be approved by the end of the two-day session Tuesday, a party source said.Prime Minister Mieczyslaw Rakowski told the meeting that Solidarity would operate on probation until May, 3, 1991, and that the Communist leadership would seek assurances from the union to refrain from destabilizing the nation.

"It (Solidarity) must see itself as part of socialism," Rakowski said. "We must seek assurance that this Solidarity, which cannot be a copy of the old Solidarity, cannot plunge the country into anarchy."

The draft resolution said the form Solidarity and other unions would take would be decided during round-table talks with Solidarity. The talks would begin in the next few days, the source said. The talks, scheduled to have begun last October, were delayed by resistance from some party members.

"There should be arranged legal conditions, ways and a schedule for the reintroduction of union pluralism and the opening of the road for the formation of new unions, including Solidarity," the draft said.

It was the first direct reference at the conference to Solidarity, which was outlawed following the imposition of martial law Dec. 13, 1981, after 16 tumultuous months of legal operation. A previous draft only referred to "another union."

Under the law, only Communist-controlled unions are permitted.

The resolution ruled out the formation of opposition political parties but said non-socialists could for political associations.