Claude Witze, 68, a senior editor of Air Force Magazine and a reporter and editor for 45 years, died of cancer Thursday at his home in Bethesda.

Mr. Witze's work for the magazine included writing two columns, "Airpower in the News" and "The Wayward Press." The latter included comment on coverage of military matters by the general news media.

He was a winner of the James Strebig Memorial Award of the Aviation/Space Writers' Association and was a three-time winner of the association's award for best writing in aviation and space business publications.

Mr. Witze was born in Gloversville, N.Y. He earned a bachelor's degree from Columbia University and graduated from its Graduate School of Journalism.

He worked on newspapers in Providence, R.I., until 1952, when he moved to the Washington area to become military editor of Aviation Week. He joined Air Force Magazine in 1957. The magazine is published by the Air Force Association, a public membership group that supports Air Force causes.

Mr. Witze's survivors include his wife, Margaret, of the home in Bethesda: a daughter, Mrs. Charles Seay, of Houston, Tex.; two sons, Christopher, of Bernardsville, N.J., and Peter, of Pleasanton, Calif., and eight grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Little Falls Library, 5501 Massachusetts Ave., Bethesda.