Konstantin Kosachyov told journalists that the lower house of parliament had received a letter confirming PACE's plans.
Two of Europe's main election monitoring bodies, the OSCE's Office for Democratic Institutions and Human Rights [ODIHR] and the OSCE Parliamentary Assembly, refused earlier on Thursday to send observers to Russia's presidential elections, citing restrictions imposed by the country's top election officials.
Kosachyov, who heads the State Duma's international affairs committee, said he had contacted Spencer Oliver, secretary general of the OSCE Parliamentary Assembly, over the organization's refusal to attend the polls.
Klas Bergman, director of communications at the OSCE Parliamentary Assembly, said earlier on Thursday the refusal was prompted by Russia's quotas on the number of observers.
"The main reason is that the OSCE Parliamentary Assembly very rarely, and only as an exception, monitors presidential elections," Kosachyov said.
Meanwhile, Oliver also reportedly told Kosachyov that he currently had no reason to suspect Russia of violations in the presidential election campaign.
Kosachyov earlier said that the ODIHR's refusal to send its observers to Russia would not affect the election campaign or the legitimacy of the new head of state. He pledged that the presidential elections would be held "in strict compliance with Russian laws and international norms."
However, he criticized the ODIHR for "seeking a pretext to create another scandal...out of nothing."
Mikhail Kamynin, the Russian Foreign Ministry's spokesman, said earlier that the OSCE's election monitoring body had deliberately set out to boycott Russia's elections.
The first group of PACE observers began monitoring work in Russia earlier in the day.
The Kremlin front-runner in next month's presidential elections, Dmitry Medvedev, has the backing of 63 % of voters, state-run VTsIOM pollster said on Wednesday.
