Russian President Vladimir Putin will meet with Serbian Prime Minister Aleksandar Vucic, a staunch ally.
Vucic's last meeting with Putin was a year ago. Vucic started his visit to Moscow on October 27, meeting with Russian Prime Minister Dmitry Medvedev to discuss trade.
Serbia has been negotiating for membership in the European Union, but has rejected the sanctions the EU imposed on Russia last year for its aggressions in Ukraine.
"We have proven our sincere and friendly attitude to Russia by being one of the European countries that refused to impose sanctions on Russia," Vucic said after meeting with Medvedev. "Serbia will continue pursuing this policy in the future."
Vucic said Serbia was close to signing a deal with Russia's Gazprom to expand gas-storage facilities in Serbia.
In return, Russia has increased food imports from Serbia even as it has banned food imports from European countries that adhere to the sanctions.
Food imports from Serbia increased 40 percent in the first half of this year, Medvedev told reporters.
"Serbia now occupies its own niche in the Russian market of agricultural products," he said.