An influential weekly that often speaks for conservatives high in the Soviet Communist Party today bitterly assailed Poland's Solidarity trade union leaders for hungering after a counterrevolution.

Accusing Solidarity of achieving no positive results since its formation last summer, the Literaturnaya Gazeta also labeled the Committee for Social Self-Defense, known as KOR, "a totalitarian, terrorist organization . . . sanctioned by NATO special services."

The denunciation is the second in as many weeks by Feliks Kuznetsov, chief of the Moscow writers' union, a powerful figure in the Soviet cultural world. He is thought to have close ties with party ideologues grouped around Mikhail Suslov, the Stalin-era Politburo member who flew to Poland three weeks ago for what evidently turned out to be an unsuccessful attempt to slow the process of internal political reform the Polish party has embarked upon.

"While describing itself as a trade union, Solidarity, or to be more precise, its extremist leadership, does not attend to its direct trade union duties . . . which Polish workers desperately need," wrote Kuznetsov. "Today, we have before us not a trade union, but a sort of social movement following aims which have nothing to do with trade unionism, but which are . . . political aims."

The article described what it said was a KOR plan, made public in an Italian newspaper, for a three-step seizure of state power. The plan allegedly calls for strikes, infiltration of media and government by counterrevolutionaries and eventual takeover of the Solidarity leadership, including removal of Lech Walesa if necessary.

"This is no program, but the constitution of a totalitarian, terrorist organization," Kuznetsov said. He added that KOR has been financed by rightist Western agencies and NATO "special services," and called its leader, Jacek Kuron, "openly Trotskyite."

Kuznetsov sought to bolster the view that the independent trade union's ambitions are dangerous to Communist power, saying that while most of its 8 million rank-and-file members are genuine patriots, and include a million Communists, the party itself has only 3 million adherents and is now heavily outnumbered by Solidarity.

This was the first time that the Soviets have supplied so much comparative information to their readers on the delicate point of mass party power and the implied disaffection with party policies that Solidarity's membership represents.