President Carter has appointed six new trustees to the Board of the Kennedy Center, one of whom is Gerald Rafshoon, Carter's former aide and campaign advertising executive.

Roger Stevens, head of the Kennedy Center, said Rafshoon's media expertise would be welcomed. "I'm glad to have someone who's familiar with television," Stevens said. "They tell me it's going to be big business."

Other appointments include Annette Strauss, vice president for public affairs and community relations at the Dallas firm of Bozell and Jacobs, who is also the sister-in-law of Robert Strauss.

"She is a trustee in everything in Texas -- symphony, drama, opera," said Peggy Rainwater, associate director of presidential personnel, of Strauss' arts credentials. "She has a good in with people in Texas and the Kennedy Center doesn't have anyone on the board from Texas."

The six part-time, volunteer trustee appointments replace trustees whose terms expired in late September, according to Rainwater. "We were all busy doing other things," said Rainwater, who makes recommendations on presidential appointments to part-time boards and commissions. "I'd say this is the normal lag time on part-time appointments."

The other appointees are:

Lew R. Wasserman, chairman of the Beverly Hills based Music Corporation of America, a huge entertainment corporation which includes Universal Pictures, Universal Television, and MCA Records among other concerns. Wasserman, who served on the Kennedy Center board previously, has been a Carter supporter since the early '70s and introduced some California entertainers to Carter.

Richmond Crinkley, executive director of the Vivian Beaumont Theater in New York and the founder of the local Folger Theater Group. He has also "been quietly active with the arts" at the White House, he said yesterday, by helping arrange for artists to perform there.

Joan Oppen Degman, publisher of the San Francisco Review and an active Democrat in California and nationally.

Henry Strong, head of the Strong Foundation here and a member of various boards of cultural institutions, was reappointed for another term. Strong is a Republican.

The Kennedy Center board consists of 30 presidentially appointed members who serve 10-year terms and 15 ex-officio members who are local and federal officials. The members meet four times a year, get a financial report on the Center, and vote on policy matters.

The terms are staggered in such a way that every two years another six trustees' appointments expire.

"Each president appoints two sets (of six trustees)," said Rainwater. "It's not like we're taking something from Reagan that would have been rightfully his."

Roger Stevens was consulted about the appointments.