Two members of the President's Commission on Organized Crime complained yesterday that they were not shown the final draft of a report released this week and were unaware of its controversial recommendation that all federal employes and federal contractors undergo mandatory drug testing.

Commission member Thomas McBride, associate dean of the Stanford University Law School, said that a draft of the report that he reviewed in late January did not contain much of the language dealing with drug testing and that he was never given a final report or informed of the changes. He added that he strongly objects to the new language.

Eugene Methvin, another member of the commission and a senior editor of Reader's Digest, said that he also learned of the the recommendation by reading newspaper accounts.

"I didn't see it, nor did I know it was coming," Methvin said, adding that he still has not been able to obtain a final copy of the commission report that bears his name. He said that when he asked the commission staff for a copy on Tuesday, he was informed that none was available.

Methvin said, however, that although he has "some reservations about the way in which the recommendations were cast, I support the major thrust."

Meanwhile, President Reagan said yesterday that although no decision has been made on drug testing for government employes, he believes that "any place where there is a safety element involved, we not only are entitled to ask for drug testing , I think we have a responsibility to do that."

The report, 455 pages of text and hundreds of pages of exhibits, was released Monday by Judge Irving R. Kaufman of the 2nd U.S. Circuit Court of Appeals, who heads the commission. It called for mandatory testing for all federal employes and government contractors, and urged private industry and state and local governments also to require testing of their employes.

At a news conference on Tuesday, Kaufman said there was more unanimity among the commissioners on the drug report than on any other of the many reports produced by the commission in the past 2 1/2 years.

A commission spokesman said "the report that was presented to the president on Monday had the approval of the commission, 15 of whose 18 members were in attendance at the presentation. While we never claimed there was absolute unanimity among all 18 commissioners on every single word, the committee stands by it. All commissioners had been afforded opportunity for comment and on virtually all occasions the commission's reports reflect the suggestions and approval of the commissioners."

But sources familiar with the commission's operations said that the 18 commissioners were not given a final draft of the report before it was released. The sources said that many of the changes were worked out over the telephone and that some commissioners may not have been informed of changes.

Commissioner Barbara Ann Rowan, an Alexandria, Va., lawyer, disagreed with McBride's complaints. "We all agreed on the utter unacceptability of drug use by anyone," she said. She added that there were changes in the final version, but added, "Each of us who was interested went over every word . . . . I don't see anybody pulling anything on anybody." Rowan also did not have a copy of the final report.

McBride said he learned of the recommendation, which has sparked heavy criticism from Congress and the American Federation of Government Employes, when he read news reports following release of the report on Monday.

House Judiciary Committee Chairman Peter W. Rodino Jr. (D-N.J.), another member of the commission, released a statement yesterday saying he disagrees with the "report's sweeping recommendations for widespread drug testing by public and private employers, and it raises serious civil liberties concerns."

McBride said he strongly opposes any suggestion that all public employes should be tested. "Drug testing is appropriate if you're putting together the shuttle rockets or driving a school bus" or if an employe is a suspect in a drug case, but not on a government-wide basis, he said.

"I particularly object to the idea of treating government employes as a group like some separate category of guinea pigs," McBride said.