Poland's communist leaders today outlined their own plans for economic reform and sharply criticized what they described as "anarchic trends" in the independent trade union federation Solidarity.

The centerpiece of the reform, which has been widely debated in Poland over the last few months, is self-management in industry and the introduction of a market economy. But big differences remain between the government and Solidarity over the extent of workers' control and the degree to which economic decision-making should be decentralized.

The official Communist Party view was presented at a Central Committee meeting today by alternate Politburo member Jan Glowczyk, one of Poland's leading economic journalists. He struck a careful balance between the principle of independence for enterprises and the retention of central planning.

In an attack on "extremist elements" in Solidarity, Glowczyk accused the "antisocialist opposition" of "conducting a ruthless, sophisticated fight, intended to disrupt the socialist system in our country by bringing about the destruction of our economy."

While the government has been pondering its plans for reform, workers have been taking matters into their own hands by setting up their own self-management organs. According to an estimate by the Polish Economics Society, 14,000 such bodies have sprung up around the country in between 60 percent and 70 percent of Polish factories.

In some cases, the workers have demanded the removal of their state-appointed director. Today, for example, print workers in the southeastern town of Rzeszow went on strike to demand the dismissal of their director, accusing him of mismanagement and "strikebreaking."

Workers in the giant Katowice steelworks are at present conducting a referendum on whether to remove their director following his decision to close Solidarity's local publication. The editor of it has since been formally accused of publishing "anti-Soviet" cartoons insulting President Leonid Brezhnev.

In his speech, Glowczyk said the activities of an enterprise could not be isolated from the overall economic policy of the state. He said a director should have the right to veto the decisions of a workers' council if they were "illegal" or "socially harmful."

Solidarity's proposals for self-management go much farther than those of the party and specifically give workers the right to appoint and dismiss a director.

In another development that could raise the political temperature, the public prosecutor in the northern town of Bydgoszcz today closed an investigation into alleged police violence against Solidarity activists last March. The prosecutor said it had proved impossible to identify any of the police involved in the beatings and therefore no charges would be laid.

There was no immediate reaction to the decision from Solidarity leaders who were meeting in the port of Gdansk to prepare for the union's first national congress, which opens Saturday.