A partnership between business and government offers the greatest hope of progress for minority businessmen and women and the unemployed, Commerce Secretary Philip M. Klutznick said yesterday.

In a speech to the National Alliance of Business convention here, Klutznick pledged the Department of Commerce to this approach, calling it the public-private agenda.

Klutznick, an enthusiastic Carter campaigner, struck only one glancing blow at the Republicans when he criticized sweeping tax-cut proposals, which he called a joyride "drawn up for the sake of political simplicity."

Such "free money" ideas would only worsen inflation, widen the budget deficit and gut "nearly every key discretionary domestic program," he said.

Joining the chorus of politicians and businessmen who extol the benefits of cooperation among society's economic adversaries, Klutznick detailed "a few notions for the renaissance of a public-private movement."

He proposed extending the concept of cooperative efforts such as the private industry councils (PICs) that advise local governments implementing the Comprehensive Employment and Training Act and that include representatives of business, government, labor and education.

"The PIC programs represent the sort of private-public partnership which this country so badly needs. With private industry now employing 80 percent of the American working force, it is unrealistic, and in all likelihood unsatisfactory, to expect the federal government to do the hiring," Klutznick said.

He also suggested encouraging federal efforts such as the Minority Business Development Agency and the Economic Development Adminstration.

Klutznick praised the National Alliance of Business, an association of 34,000 companies which matches jobs and the jobless and receives a quarter of its funds from the Department of Labor, for combining the interests of small and big business.