Senate Minority Leader Robert J. Dole (R-Kan.) warned the Reagan administration yesterday that verification requirements could be a "stumbling block" in Senate ratification of a U.S.-Soviet treaty to eliminate medium- and short-range nuclear missiles.

He said that the Senate may insist on "reservations or declarations to the ratification resolution to make certain that the treaty would be null and void if certain things happen."

Dole's warning came as chief U.S. arms negotiator Max M. Kampelman said he thought the agreement could be "wrapped up in short order," including verification procedures that would be "in our interest."

While expressing hope for a "strong bipartisan vote" in favor of the pact, Dole said he and other senators are awaiting final terms for on-site inspections and other means of monitoring compliance with the pact.

Dole said on CBS News' "Face the Nation" that he had just been assured by national security adviser Frank C. Carlucci that inspections will still be required, even though the administration indicated last week it is easing its earlier demands for on-site checks.

"But I think the president should know that a lot of his supporters in the Senate are going to be very sensitive on this issue," added Dole, who has often gone out of his way to reflect the concern of conservatives in his bid for the Republican presidential nomination next year.

In a "friendly warning" to the administration, he said, "There are already rumbles in the Senate, and it could come from both sides, that there isn't this trust of the Soviets and trust of the Soviet leadership, and we are going to insist on verification of all kinds . . . . "

He said he thought the treaty could be framed to meet these concerns. But "if there is no assurance on verification, it's going to be tough to ratify, including this senator."

Appearing on John McLaughlin's "One on One" (NBC) and on ABC News' "This Week With David Brinkley," Kampelman said the United States is demanding "some method of on-site inspection" to assure that weapons are actually destroyed and "some kind of base agreement between us as to what they now have."

Also, he said, "we want to make certain, for example, that the production facilities -- because under zero {missiles} there'll be no more production facilities -- we want to make certain that these production facilities, as a matter of fact, come to an end."

Kampelman said he thinks the Senate will ratify the treaty because "members of the Senate have been intimately involved through their observer group with every phase of our negotiations" and because "we {the administration} are not going to recommend any treaty that doesn't satisfy American interests."