Sponsors of a law to compensate Japanese-Americans who were forced to live in internment camps during World War II say it would take 60 years to make reparations under the spending plan proposed by President Reagan.

"Unless Congress appropriates the authorized maximum amount . . . many of the eligible recipients may die before receiving their token compensation," Sen. Spark Matsunaga, D-Hawaii, said Tuesday. Matsunaga and the other lawmakers who sponsored the 1988 law said they would press the House and Senate budget committees to vastly increase the $20 million in the president's 1990 budget for the reparations.